Good question.  Here's just one of the teaching passages from the New Testament:

1 Thessalonians 4:1-8
Finally, dear brothers and sisters, we urge you in the name of the Lord Jesus to live in a way that pleases God, as we have taught you. You are doing this already, and we encourage you to do so more and more. 2 For you remember what we taught you in the name of the Lord Jesus. 3 God wants you to be holy, so you should keep clear of all sexual sin. 4 Then each of you will control your body and live in holiness and honor-- 5 not in lustful passion as the pagans do, in their ignorance of God and his ways.

6 Never cheat a Christian brother in this matter by taking his wife, for the Lord avenges all such sins, as we have solemnly warned you before. 7 God has called us to be holy, not to live impure lives. 8 Anyone who refuses to live by these rules is not disobeying human rules but is rejecting God, who gives his Holy Spirit to you."  NLT

Abstinence is the will of God.