Adam Clarke's Commentary on the Bible - Deuteronomy 31:6
Be strong - חזקו chizku , the same word that is used Exodus 4:21 ; (note), Exodus 9:15 ; (note), for hardening Pharaoh's heart. See the notes there. The Septuagint, in this and the following verse, have, Ανδριζου και ισχυε , Play the man, and be strong; and from this St. Paul seems to have borrowed his ideas, 1 Corinthians 16:13 ; : Στηκετε εν τῃ πιστει· ανδριζεσθε, κρατιουσθε : Stand firm in the faith; play the man - act like heroes; be vigorous. read more
Adam Clarke's Commentary on the Bible - Deuteronomy 31:3
Joshua, he shall go over before thee - See on Numbers 27:17 ; (note), etc. read more