John Gills Exposition of the Bible Commentary - Proverbs 18:15
The heart of the prudent getteth knowledge ,.... More knowledge; for he must have some, and a considerable share, to be denominated "prudent", whether in things natural, civil, or spiritual: and such will be heartily desirous of more, and make use of all means to attain it, by which they do come at a large share of it; and the ear of the wise seeketh knowledge ; a wise man seeks to get it by hearing; he listens to what others say, and especially such that are wiser and more knowing than... read more
Matthew Henry's Complete Commentary - Proverbs 18:15
Note, 1. Those that are prudent will seek knowledge, and apply their ear and heart to the pursuit of it, their ear to attend to the means of knowledge and their heart to mix faith with what they hear and make a good improvement of it. Those that are prudent do not think they have prudence enough, but still see they have need of more; and the more prudent a man is the more inquisitive will he be after knowledge, the knowledge of God and his duty, and the way to heaven, for that is the best... read more