And the child grew, and became strong in spirit, and was in the deserts till the day of his showing unto Israel.
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Theophilus of Antioch
AD 184
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.
Or, he was in the deserts that he might be brought up beyond the reach of the malice of the multitude, and not be afraid of man. For if he had been in the world, perchance he had been corrupted by the friendship and conversation of the world. And secondly, that he who was to preach Christ might also be esteemed trust-worthy. But he was hid in the desert until it pleased God to show him forth to the people of Israel, as it follows, till the day of his showing forth to Israel.