Acts 15:7-9

7And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe.

8And God, which knoweth the hearts, bare them witness, giving them the Holy Ghost, even as he did unto us;

9And put no difference between us and them, purifying their hearts by faith.