Theophylact of Ohrid
Catena Aurea · Lukasevangelium 1
And the child grew, and waxed strong in spirit, and was in the deserts till the day of his shewing unto Israel.
i. e. in bodily stature, and waxed strong in spirit, for together with his body at the same time his spiritual gift increased, and the workings of the Spirit were more and more manifested in him.