The Bible tells us that our repentance should bear fruits. These fruits show the reality that we have been changed by the Lord's grace. It is imperative that all who profess to be followers of the Lord Jesus Christ be able to show the fruit of a changed life because only then can we prove that we are indeed made new.
Paul said in Colossians 1:6 that the gospel "is bearing fruit everywhere by changing lives." He continues on to explain that this change begins the moment we hear and understand the truth about "God's wonderful grace" which was generously given to us through Christ Jesus our Lord.
This grace enables us to bear the fruit of a changed life: that we would completely turn away from the sin that Christ saved us from.
Here are some Bible verses speaking of the importance of bearing fruits in keeping with repentance.
Matthew 3:7-10 – "But when [John the Baptist] saw many Pharisees and Sadducees coming to watch him baptize, he denounced them. "You brood of snakes!" he exclaimed. "Who warned you to flee the coming wrath? Prove by the way you live that you have repented of your sins and turned to God. Don't just say to each other, 'We're safe, for we are descendants of Abraham.' That means nothing, for I tell you, God can create children of Abraham from these very stones. Even now the ax of God's judgment is poised, ready to sever the roots of the trees. Yes, every tree that does not produce good fruit will be chopped down and thrown into the fire." Matthew 16:24-28 – "Then Jesus said to his disciples, "If any of you wants to be my follower, you must give up your own way, take up your cross, and follow me. If you try to hang on to your life, you will lose it. But if you give up your life for my sake, you will save it. And what do you benefit if you gain the whole world but lose your own soul? Is anything worth more than your soul? For the Son of Man will come with his angels in the glory of his Father and will judge all people according to their deeds. And I tell you the truth, some standing here right now will not die before they see the Son of Man coming in his Kingdom."" 2 Corinthians 5:15 – "He died for everyone so that those who receive his new life will no longer live for themselves. Instead, they will live for Christ, who died and was raised for them." Galatians 5:19-26 – "When you follow the desires of your sinful nature, the results are very clear: sexual immorality, impurity, lustful pleasures, idolatry, sorcery, hostility, quarreling, jealousy, outbursts of anger, selfish ambition, dissension, division, envy, drunkenness, wild parties, and other sins like these. Let me tell you again, as I have before, that anyone living that sort of life will not inherit the Kingdom of God. But the Holy Spirit produces this kind of fruit in our lives: love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. There is no law against these things! Those who belong to Christ Jesus have nailed the passions and desires of their sinful nature to his cross and crucified them there. Since we are living by the Spirit, let us follow the Spirit's leading in every part of our lives. Let us not become conceited, or provoke one another, or be jealous of one another." Romans 6:15-19 – "What then? Are we to sin because we are not under law but under grace? By no means! Do you not know that if you present yourselves to anyone as obedient slaves, you are slaves of the one whom you obey, either of sin, which leads to death, or of obedience, which leads to righteousness? But thanks be to God, that you who were once slaves of sin have become obedient from the heart to the standard of teaching to which you were committed, and, having been set free from sin, have become slaves of righteousness. I am speaking in human terms, because of your natural limitations. For just as you once presented your members as slaves to impurity and to lawlessness leading to more lawlessness, so now present your members as slaves to righteousness leading to sanctification."