'Diligently' in the Bible

But, when he was in Rome, he sought me out very diligently, and found me.

Strive diligently to present thyself approved to God, a workman that has not to be ashamed, cutting in a straight line the word of truth.

Now you have diligently followed [my example, that is] my teaching, conduct, purpose, faith, patience, love, steadfastness,