“. . . . . It was declared at first by the Lord, and it was attested to us by those who heard . . . . ”
Hebrews 2:3

Hebrews 2:1-4
Warning Against Neglecting So Great a Salvation

[2:1] Therefore we must pay much closer attention to what we have heard, lest we drift away from it. [2] For since the message declared by angels proved to be reliable, and every transgression or disobedience received a just retribution, [3] how shall we escape if we neglect such a great salvation? It was declared at first by the Lord, and it was attested to us by those who heard, [4] while God also bore witness by signs and wonders and various miracles and by gifts of the Holy Spirit distributed according to his will.