whosoever heareth these sayings of mine, and doeth them - see Jam 1:22, which seems a plain allusion to these words; also Luk 11:28; Rom 2:13; 1Jo 3:7.
I will liken him unto a wise man - a shrewd, prudent, provident man.
which built his house upon a rock - the rock of true discipleship, or genuine subjection to Christ.