Jamieson, Fausset and Brown on John 5:24

24. believeth on him that sent me--that is, believeth in Him as having sent Me. I have spoken of the Son's right not only to heal the sick but to raise from the dead, and quicken whom He will: And now I say unto you, That life-giving operation has already passed upon all who receive My words as the Sent of the Father on the great errand of mercy.

hath everlasting life--immediately on his believing (compare Joh 3:18; 1Jo 5:12, 13).

is passed--"hath passed over"

from death unto life--What a transition! (Compare 1Jo 3:14).