Definitions of words in Isaiah 40:21:
Bowing {Easton's Bible Dictionary}
Bowing {International Standard Bible Encyclopedia}
Convince {International Standard Bible Encyclopedia}
Folly {International Standard Bible Encyclopedia}
Gods {International Standard Bible Encyclopedia}
Have {International Standard Bible Encyclopedia}
Omnipotence {International Standard Bible Encyclopedia}
Other definition entries containing Isaiah 40:21:
Isaiah, 1-7 {I.S.B.E.}