Definition of everlasting:
(adj) :
lasting or enduring forever; existing or continuing without end; immortal; eternal. "The Everlasting God." Gen. xx1. 33; continuing indefinitely, or during a long period; perpetual; sometimes used, colloquially, as a strong intensive; as, "this everlasting nonsense"
"I will give to thee, and to thy seed after thee . . . the land of Canaan, for an everlasting possession. Gen xvii. 8."