“Repentance is from a Greek word meaning “to change one’s mind.” When it is applied in a biblical sense, it doesn’t mean changing your ways (or else!). It means that you recognize God is God and you aren’t. It means that you don’t get a vote on what is right and what is wrong. It means that when you recognize God’s authority, you go to God sand tell him so. In short, repentance is knowing who you are, who God is, and what you’ve done or haven’t done, and then going to God in agreement with him and his assessment” (Steve Brown, “Three Free Sins: God’s Not Mad at You,” 38).
“Repentance isn’t changing; it’s God’s way of changing us if that is what he wants. Changing, though, isn’t even the issue. If the Bible is right in that all our sins are covered by the sacrifice of Christ on the cross and Christ gives us his righteousness in place of our sinfulness, change may happen, but it isn’t what this whole thing is about” (Ibid).
“What is repentance unto life? Repentance unto life is a saving grace, whereby a sinner, out of a true sense of his sin, and apprehension of the mercy of God in Christ, doth, with grief and hatred of his sin, turn from it unto God, with full purpose of, and endeavour after, new obedience” (Question and Answer 87).
“As it is, I rejoice, not because you were grieved, but because you were grieved into repenting. For you felt a godly grief, so that you suffered no loss through us. For godly grief produces a repentance that leads to salvation without regret, whereas worldly grief produces death” (2 Corinthians 7.9-10).
“Therefore, my beloved, as you have always obeyed, so now, not only as in my presence but much more in my absence, work out your own salvation with fear and trembling, for it is God who works in you, both to will and to work for his good pleasure” (Philippains 2.12-13).