'Once' in the Bible

saw fit to reveal His Son within me in order that I might tell among the Gentiles the Good News concerning Him, at once I did not confer with any human being,

They only heard it said, "He who was once our persecutor is now telling the Good News of the faith of which he formerly made havoc."

Brethren, even a covenant made by a man--to borrow an illustration from daily life--when once formally sanctioned is not liable to be set aside or added to.

Now, however, having come to know God--or rather to be known by Him--how is it you are again turning back to weak and worthless rudimentary notions to which you are once more willing to be enslaved?

I once more protest to every man who receives circumcision that he is under obligation to obey the whole Law of Moses.