'Profession' in the Bible

I indeed am baptizing you in water on a profession of repentance; but He who is coming after me is mightier than I: His sandals I am not worthy to carry for a moment; He will baptize you in the Holy Spirit and in fire.

Exert all your strength in the honourable struggle for the faith; lay hold of the Life of the Ages, to which you were called, when you made your noble profession of faith before many witnesses.

I charge you--as in the presence of God who gives life to all creatures, and of Christ Jesus who at the bar of Pontius Pilate made a noble profession of faith--

Inasmuch, then, as we have in Jesus, the Son of God, a great High Priest who has passed into Heaven itself, let us hold firmly to our profession of faith.