Bob Hoekstra preaches about the assurance and confidence believers can have in God's work of salvation in their lives. He emphasizes that God, who has begun a good work in us, will continue to complete it until the day of Jesus Christ, bringing us into a deeper understanding of our identity in Christ and transforming our character to reflect Him. This saving work is not based on self-confidence but on trusting in the Lord's ability to fulfill His promises and make us complete in every good work. Believers are encouraged to walk worthy of their calling, knowing that God is the one who works in them to accomplish His will.

The preacher delves into the concept of 'Confident' (pepoithesis), which means full persuasion and trust in someone or something, whether it be in others, in God, or in oneself. This settled conviction is rooted in a past process of being completely persuaded, resulting in a confirmed and settled state of utter confidence. The nuance of meaning varies depending on the context, from confidence in God to self-confidence, with examples from 2 Corinthians, Ephesians, and Philippians.

John Piper preaches on the importance of every Christian using the gifts received from God for the good of the church and the glory of God. He emphasizes that each believer has a unique gift to contribute, as confirmed by 1 Peter 4:10,11 and 1 Corinthians 12:7. Piper provides compelling reasons, based on 2 Corinthians 3 and 4, for desiring to use these gifts, such as becoming ministers of the new covenant, experiencing spiritual power, and serving others for Jesus' sake. He also highlights that even in our ordinariness or weaknesses, we can glorify God by using our gifts, leading to increased thanksgiving and eternal rewards despite any afflictions faced.