7 Just so, I tell you, there will be more joy in heaven over one sinner who repents than over ninety-nine righteous persons who need no repentance.
10 Just so, I tell you, there is joy before the angels of God over one sinner who repents.”
In Sunday school we discussed how can we not be conformed to this world (Rom. 12:1-2) For we should not be conformed to this world, but be transformed by the renewing of your mind. Some good verses to help in this are Ps. 119: 11 and Phil 4:8 (ESV online):
11 I have stored up your word in my heart, that I might not sin against you.
8 Finally, brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things.