1 Thessalonians 4:3-8 (NIV)
3It is God’s will that you should be sanctified: that you should avoid sexual immorality;
4that each of you should learn to control his own body in a way that is holy and honorable,
5not in passionate lust like the heathen, who do not know God;
6and that in this matter no one should wrong his brother or take advantage of him. The Lord will punish men for all such sins, as we have already told you and warned you.
7For God did not call us to be impure, but to live a holy life.
8Therefore, he who rejects this instruction does not reject man but God, who gives you his Holy Spirit.
2 Samuel 14:14 (NIV)
14Like water spilled on the ground, which cannot be recovered, so we must die. But God does not take away life; instead, he devises ways so that a banished person may not remain estranged from him.
1 John 1:9 (NIV)
9If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness.