Hebrews 2:1

Hebrews 2:1. Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.

That is to say, because Jesus is so great, because the truths which he came to reveal are so infinitely important, "therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip;" for, sometimes, we seem to let them slip. We grow old; our mind is dull; our heart is occupied with other matters, and we let these heavenly things leak out, or drift by us, as if we were not concerned in them.