john 1.12-13 But as many as received him, to them he gave power to become the sons of God, even to those who believe on his name.
1 thessalonians 1.5 For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance.
1 thessalonians 2.13 For this cause also we thank God constantly, because, when you received the word of God which you heard from us, you received it not as the word of men, but as it is in truth, the word of God, which also puts forth power in you who believe.