Matthew 1:21 says, "And she shall bring forth a son, and thou shalt call His name Jesus: for He shall save His people from their sins." Even before the incarnation of Christ as God becoming man, it was already announced by the angel Gabriel that Jesus would save His people from their sins. The message has been salvation from our sins and not in our sins. True that good works do not merit to earning salvation but one cannot deny that God's grace saves men from their sins. Ephesians 2:10 still declares, "For we are His workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them."
Titus 2:11-14 declares, "For the grace of God that bringeth salvation hath appeared to all men, teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; who gave himself for us, that He might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works." If one is saved by grace through faith then one can expect a new different lifestyle.
The true repentance is not just they want to escape Hell, it is they see their unholiness has condemned them to Hell. This is seeing they deserve nothing but Hell because of their sin. They see sin as something offensive before a holy and righteous God. No true Christian can ever think even for a moment that salvation is a license to sin. Only fake converts think of such stupidity and heresy, stating that it is adding works to faith to preach that true Christians will show evidence of faith by the works. These Antinomians fail to see the reality that these good works emphasized are the results of God's grace and in no way preached to them as the cause but rather the inevitable effect of God's grace in the life of the believer.