Andrew Murray emphasizes the necessity of being baptized with the Holy Spirit to receive divine power for witnessing Christ. He explains that the Holy Spirit empowers believers not just for personal holiness but for effective service in glorifying Jesus and fulfilling the Great Commission. Murray highlights that true power comes from surrendering to the Holy Spirit, who works through our weaknesses to accomplish God's purposes. He urges the Church to seek this power with the intent of being effective witnesses for Christ, as the world awaits the manifestation of God's power through His people. Ultimately, the sermon calls for a deep dependence on the Holy Spirit to enable believers to live out their calling as witnesses of Jesus.

C.H. Spurgeon emphasizes the assurance that believers are preserved by God until their work on earth is complete, drawing from Acts 23:11 where the Lord reassures Paul. He encourages those facing danger or adversity to remember their divine purpose and that they are immortal until their testimony is fulfilled. Spurgeon reminds us that no external forces can thwart God's plans for us, and we should find peace and joy in our witness for Christ. He also urges prayer for missionaries and the persecuted, highlighting the importance of supporting those who bear witness under duress.

F.B. Meyer emphasizes the profound relationship between the Holy Spirit and those who surrender to Him, likening it to clothing that the Spirit wears. He challenges listeners to consider whether they are allowing the Spirit to work through them or if they are merely using the Spirit for personal gain. Meyer warns that embodying the Spirit may lead to conflict with societal norms, as it did for Zechariah, who faced persecution for his faithfulness. He encourages believers to be pliable and willing to bear the cost of their witness, knowing that true martyrdom is recognized by Christ. Ultimately, the sermon calls for a deep commitment to being vessels of the Holy Spirit's power and glory.

John Sung emphasizes the significance of Noah's faith and obedience in building the Ark amidst a wicked world. He contrasts the sons of God with the people of the world, urging believers to maintain holiness and separation from worldly influences. Despite ridicule and a lack of response to his preaching, Noah remained steadfast, demonstrating that true faith and preparation for God's judgment are never in vain. Sung highlights the importance of family unity in faith and the eternal value of serving God over worldly pursuits. Ultimately, he encourages believers to witness for Christ in all aspects of life, as Noah's labor was a testament to enduring faith.

G. Campbell Morgan emphasizes that martyrs are not defined by their suffering but by their unwavering commitment to the truth of Christ, which is revealed through their lives and sacrifices. He explains that true martyrs are those who are convinced of their faith and demonstrate it through their transformed lives, serving as living witnesses to the resurrection and exaltation of Jesus. The church must present these changed lives as evidence of the truth it proclaims; without such witnesses, its message becomes ineffective. Morgan challenges believers to reflect on their own transformations as proof of their faith, asserting that their lives should testify to the reality of Christ's work in the world.

Chuck Smith emphasizes the contrast between worldly wisdom and true wisdom that leads to eternal significance, urging believers to focus on living for God's glory rather than seeking earthly accolades. He highlights that true wisdom is measured by how one lives in light of eternity, encouraging Christians to shine as lights in a dark world by turning others to righteousness. Smith warns against the fleeting nature of worldly fame, comparing it to fireworks that quickly fade, while the stars, representing those who live for God, shine forever. He calls on believers to be witnesses of God's grace, demonstrating peace and joy even in trials, as a powerful testimony to others. Ultimately, those who lead others to righteousness will shine as stars in eternity.

David Wilkerson emphasizes the transformative power of being in the presence of Jesus, as demonstrated by Peter and John when they healed a crippled beggar. Their boldness in preaching repentance and the miraculous healing led to thousands being saved, despite opposition from the rulers who recognized that these men had been with Jesus. The sermon highlights that true witness for Christ comes not just from preaching, but from a deep, personal relationship with Him. Wilkerson calls believers to seek Jesus wholeheartedly, allowing His power to transform their lives and impact others. The ultimate testimony is that others can see the evidence of Jesus in our lives.

J.R. Miller addresses the painful reality of failing faith, emphasizing how it grieves Jesus when His followers doubt. He illustrates this through Peter's experience of walking on water, highlighting that doubt leads to failure, and that our actions have far-reaching consequences on others' faith. Miller encourages believers to remain steadfast in their witness for Christ, even in the mundane moments of life, as our failures can weaken the faith of those observing us. He reminds us that every moment is an opportunity to represent Christ faithfully, and that we must keep our eyes on Him to avoid sinking in our trials. Ultimately, the sermon calls for a deeper understanding of the seriousness of our faith failures and the importance of sustained faith in overcoming life's challenges.

Chuck Smith emphasizes the necessity of being empowered by the Holy Spirit, which is a distinct experience from the indwelling of the Spirit that occurs at conversion. He explains that the Holy Spirit's empowering presence enables believers to be effective witnesses for Christ, flowing out of their lives to impact the world. Smith highlights biblical examples, such as the apostles and the Samaritans, to illustrate this separate experience of receiving the Holy Spirit. He encourages believers to seek this empowering relationship, which he describes as an overflow of the Spirit, essential for ministry and transformation into the image of Christ. Ultimately, he challenges the congregation to reflect on whether they have experienced this empowering of the Holy Spirit in their lives.

Andrew Murray emphasizes the vital role of personal witness in the life of every redeemed Christian, urging believers to actively share their faith and the joy of salvation with others. He highlights the necessity of speaking to individuals about their need for redemption, encouraging a loving and faith-filled approach to evangelism. Murray stresses that this work should be done in fellowship with Jesus, relying on His strength and love to guide and empower our efforts. He calls on Christians to be courageous in their witness, reminding them that their personal testimony can lead others to salvation. Ultimately, he encourages believers to embrace the honor of serving God by helping others find Him.

R.A. Torrey discusses Jesus' final conversation with His disciples in Jerusalem and His ascension from Bethany, emphasizing the fulfillment of Old Testament prophecies regarding Christ's life, death, and resurrection. He highlights the importance of understanding Scripture through the Holy Spirit, the necessity of preaching repentance and remission of sins, and the role of the disciples as witnesses of Christ. The sermon concludes with the significance of Jesus' ascension for believers' security and the disciples' response of worship and praise. Torrey encourages believers to rely on the power from on high to fulfill their commission.

John Nelson Darby emphasizes the significance of the Holy Spirit's coming and the disciples' role as witnesses after Jesus' ascension. He highlights the intimate relationship between Christ and His disciples, reassuring them of His presence and the promise of the Holy Spirit. The sermon reflects on the disciples' expectations of a restored kingdom for Israel and the importance of waiting for the Spirit's empowerment. Darby also notes the disciples' unity in prayer and their selection of Matthias to replace Judas, illustrating their commitment to fulfilling God's plan. Ultimately, the message conveys hope in Christ's return and the joy of being in His presence forever.

A.B. Simpson emphasizes the profound relationship between the Holy Spirit and Jesus Christ in the First Epistle of John, noting that John's focus on Christ reflects his deep saturation with the Holy Spirit. He explains that the Holy Spirit's role is to glorify Jesus, and as believers are filled with the Spirit, they become more occupied with Christ rather than their own experiences. Simpson discusses the Holy Spirit as the divine anointing, the indwelling presence, and the witness to our faith, urging believers to recognize the Spirit's power and to be vigilant against counterfeit spirits. Ultimately, he encourages Christians to yield to the Holy Spirit, allowing Him to work through them to bear witness to Jesus.