5:12 For though by this time you ought to be teachers, you need some one to teach you again the first principles of God's word. You need milk, not solid food;

7:24 "Every one then who hears these words of mine and does them will be like a wise man who built his house upon the rock; 7:25 and the rain fell, and the floods came, and the winds blew and beat upon that house, but it did not fall, because it had been founded on the rock. 7:26 And every one who hears these words of mine and does not do them will be like a foolish man who built his house upon the sand; 7:27 and the rain fell, and the floods came, and the winds blew and beat against that house, and it fell; and great was the fall of it."

2:8 See to it that no one makes a prey of you by philosophy and empty deceit, according to human tradition, according to the elemental spirits of the universe, and not according to Christ.