John Nelson Darby expounds on Mark 12, illustrating the incompetence of the Jewish leaders who rejected God's messengers, culminating in the rejection of His Son. He emphasizes that Israel, as God's vineyard, failed to produce fruit despite the privileges granted to them, leading to their judgment and the transfer of God's favor to others. The sermon highlights the wisdom of Christ in addressing the Pharisees, Herodians, and Sadducees, revealing their hypocrisy and misunderstanding of God's word. Darby concludes with the importance of true devotion, as exemplified by the widow who gave all she had, contrasting her genuine sacrifice with the empty offerings of the rich. Ultimately, the message calls for recognition of Christ's authority and the need for sincere faith and obedience.

Theodore Epp emphasizes the significance of true sacrifice in his sermon 'When Is It a Sacrifice?' by examining David's decision to purchase the threshing floor of Ornan for an altar. David understood that offering to God must come at a personal cost, rejecting the free gift of the land and offerings, as he believed that true worship requires sacrifice. This act serves as a powerful reminder that serving God involves personal investment and commitment, rather than merely giving what is easy or free. Epp highlights that genuine sacrifices are those that come from a broken spirit and a contrite heart, aligning with God's desire for heartfelt worship.