1 Corinthians 9:2

If to others I am not an apostle , at least I am to you , for you are the seal of my apostleship in the Lord .

Even though I may not be an apostle to others, surely I am to you! For you are the seal of my apostleship in the Lord.

If I be not an apostle unto others, yet doubtless I am to you : for the seal of mine apostleship are ye in the Lord.