doeth not. The Negative expresses the feeling. doth not wish to do them.
it fell. All the texts read sunepesen for epesen, i.e. it collapsed.
ruin. breaking up. Another medical word.
Related Commentaries of Luke 6:49
Luke 6:49
49 But he that heareth, and doeth not, is like a man that without a foundation built an house upon the earth; against which the stream did beat vehemently, and immediately it fell; and the ruin of that house was great.