Acts 15:12

So Jesus said to him, “Unless you people see signs and wonders, you will never believe.”

And when they had arrived and gathered the church together, they began to report all things that God had done with them and how He had opened a door of faith to the Gentiles.

Therefore, being sent on their way by the church, they were passing through both Phoenicia and Samaria, recounting in detail the conversion of the Gentiles, and were bringing great joy to all the brothers.

When they arrived at Jerusalem, they were received by the church and the apostles and the elders, and they reported all that God had done with them.

For I will not be bold to speak of anything except what Christ has brought about through me, leading to the obedience of the Gentiles by word and deed,

Was any man called when he was already circumcised? He is not to become uncircumcised. Has anyone been called in uncircumcision? He is not to be circumcised.