Note 3 at Mt 28:18: God had delegated the power over the earth to mankind in the beginning (Ge 1:26-28; Ps 8:4-8, and 115:16). When man disobeyed God (Ge 3:1-6), that power was delivered to Satan (Lu 4:6). Therefore, the Lord did not have absolute control over the earth and its affairs.

When Jesus died, He descended into hell (Ps 16:10 with Ac 2:31, and Eph 4:8-10) and stripped Satan of all his power (Re 1:18). Now, God once again has all power in heaven and earth.