The further we progress in reading, the greater grows the accumulation of mysteries for us. And just as if someone should embark on the sea borne by a small boat, as long as he is near land he has little fear. But, when he has advanced little by little into the deep and has begun either to be lifted on high by the swelling waves or brought down to the depths of the same gaping waves then truly great fear and terror permeate his mind because he has entrusted a small craft to such immense waves. So also we seem to have suffered, who, small in merits and slight in ability, dare to enter so vast a sea of mysteries. But if by your prayers the Lord should see fit to give us a favorable breeze of his Holy Spirit we shall enter the port of salvation with a favorable passage of the word.
–Origen, Homilies on Genesis 9.1