He also adds, that his Spirit would be in the midst of them; and then he says, that there was no reason for them to fear. By his Spirit God means the power by which he strengthened their minds, that they might not give way to their trials, or, that fear might not hinder them. And what is particular is joined to what is general; for God is present with his own in various ways: but he especially shows, that he is present when, by his Spirit, he confirms weak minds. He then bids them all to be of a courageous mind. This is one thing. But he also shows whence this courage proceeded; for he sustained them by his Spirit when they were growing faint, or when they were not able to resist fears. The Prophet reminds them by these words, that courage was to be sought from God.