John of Damascus

(de. Fid. Orth. iii. 24.) But seeing that prayer is the sending up the understanding to God, or the asking of God things fitting, how did the Lord pray? For His understanding needed not to be lifted up to God, having been once united hypostatically to God the Word. Neither could He need to ask of God things fitting, for the One Christ is both God and Man. But giving in Himself a pattern to us, He taught us to ask of God, and to lift up our minds to Him. As He took on Him our passions, that by triumphing over them Himself, He might give us also the victory over them, so now He prays to open to us the way to that lifting up to God, to fulfil for us all righteousness, to reconcile His Father to us, to pay honour to Him as the First Cause, and to shew that He is not against God.