The central message of this sermon is that the choice between salvation and damnation lies with humanity, not with God. Despite God's desire for everyone to be saved (Ezekiel 33:11, 1 Timothy 2:4, 2 Peter 3:9), people must choose to believe in Jesus and accept His offer of salvation. The sermon emphasizes that this is a binary choice, with only two outcomes: either one believes in Jesus and receives everlasting life, or they do not believe and perish in their sins (John 3:16-18). The takeaway from the sermon is that the decision to accept or reject God's gift of salvation through Jesus Christ is an individual choice, requiring a personal act of faith and submission to God's will.