Maketh Flesh His Arm

This is another way of saying the “strength” of man, rather than the “strength” of God.  No man’s precepts should be accepted when they do not originate in revelation and from God.  Without a connection to revelation and the Holy Ghost, the teachings are all the arm of flesh.  If you want to trust in that, you will be cursed.  (2 Nephi 12:6).  See TRUST IN MAN.