One of the reasons Paul left Titus in Crete (cf. 1:5) was to remind those who were “heirs according to the hope of eternal life” (3:7) how to live. A Christian is to submit to authorities, be ready for good works, speak evil of no one, be peaceable, gentle, and humble (cf. 3:1-2). Paul makes the point that before they became Christians they acted in an ungodly way. However, when they partook of the grace of God by being regenerated, they were saved by His mercy. This was only possible through His son, Jesus Christ their savior. By submitting to Christ and God, they became heirs of eternal life.
He then records a “faithful saying.” This statement is one that stands true, and constant. Those who have believed in God, and have been regenerated, should “be careful to maintain good works.” “Be careful” implies an importance of maintaining good works. If an individual were “once saved always saved” this statement would seem unnecessary. A Christian is one who devotes their life to good works. By doing this their life is devoted to God. If good works are maintained, those who possess them will profit. Let us all remember what “the grace of God that brings salvation” (2:11) teaches us!