RENEWAL OF THE COVENANT. (Gen. 17:1-27) Abram . . . ninety years old and nine--thirteen years after the birth of Ishmael [Gen 16:16]. During that interval he had enjoyed the comforts of communion with God but had been favored with no special revelation as formerly, probably on account of his hasty and blameable marriage with Hagar. the Lord appeared--some visible manifestation of the divine presence, probably the Shekinah or radiant glory of overpowering effulgence. I am the Almighty God--the name by which He made Himself known to the patriarchs (Exo 6:3), designed to convey the sense of "all-sufficient" (Psa 16:5-6; Psa 73:25). walk . . . and . . . perfect--upright, or sincere (Psa 51:6) in heart, speech, and behavior.