'Obligated' in the Bible

When a man is newly married, he need not go into the army nor be obligated in any way; he must be free to stay at home for a full year and bring joy to the wife he has married.

I thought, 'Now the Philistines will come down on me at Gilgal and I have not sought the Lord's favor.' So I felt obligated to offer the burnt offering."

I am obligated to fulfill the vows I made to you, O God; I will give you the thank-offerings you deserve,

I did not spend my time in the company of other people, laughing and having a good time. I stayed to myself because I felt obligated to you and because I was filled with anger at what they had done.