Hebrews 2
3 Ref What will come on us, if we do not give our minds to such a great salvation? a salvation of which our fathers first had knowledge through the words of the Lord, and which was made certain to us by those to whom his words came;
4 Ref And God was a witness with them, by signs and wonders, and by more than natural powers, and by his distribution of the Holy Spirit at his pleasure.