'Part' in the Bible

while you on your part lend us your aid in entreaty for us, so that from many lips thanksgivings may rise on our behalf for the boon granted to us at the intercession of many.

For there is no undue stretch of authority on our part, as though it did not extend to you. We pressed on even to Corinth, and were the first to proclaim to you the Good News of the Christ.

I wish you could have borne with a little foolish boasting on my part. Nay, do bear with me.