49 There is still, the heretics say, another serious and far reaching confession of weakness, all the more so because it is in the mouth of the Lord Himself, My God, My God, why have You forsaken Me? They construe this into the expression of a bitter complaint, that He was deserted and given over to weakness. But what a violent interpretation of an irreligious mind! How repugnant to the whole tenor of our Lord's words! He hastened to the death, which was to glorify Him, and after which He was to sit on the right hand of power; with all those blessed expectations could He fear death, and therefore complain that His God had betrayed Him to its necessity, when it was the entrance to eternal blessedness?
Source: On the Trinity (New Advent)