A.B. Simpson emphasizes the importance of finishing our work in his sermon 'Finishing Our Work.' He reflects on the ministry's fruitful two years, expressing gratitude for the souls saved and the support received, while urging the congregation to consider the significance of completing their spiritual and life missions. Simpson warns against the sorrow of unfinished work, drawing parallels from biblical figures like Moses, Joshua, and Jesus, who all completed their God-given tasks. He encourages believers to strive for wholeness in their Christian character and to fulfill their commitments to God and others. Ultimately, he calls for a life lived with purpose, ensuring that nothing is left undone as they move forward.