(16) For I will shew him how great things he must suffer . . .--The words are spoken as by One who knows "what is in man" (John 2:25), their secret motives, and springs of action. With characters of a lower type, the prospect of what they will have to suffer in any enterprise tends to deter them from embarking on it. With such a one as Saul of Tarsus, now repenting of the sufferings he had inflicted on others, that prospect would be welcome as enabling him, so far as that was possible, if not to atone for the past, at least to manifest fruits worthy of his repentance.

Verse 16. - Many for great, A.V. St. Paul's whole life was the fulfillment of this word of Christ (see 2 Corinthians 11:23-27; 2 Corinthians 6:4-10).

9:10-22 A good work was begun in Saul, when he was brought to Christ's feet with those words, Lord, what wilt thou have me to do? And never did Christ leave any who were brought to that. Behold, the proud Pharisee, the unmerciful oppressor, the daring blasphemer, prayeth! And thus it is even now, and with the proud infidel, or the abandoned sinner. What happy tidings are these to all who understand the nature and power of prayer, of such prayer as the humbled sinner presents for the blessings of free salvation! Now he began to pray after another manner than he had done; before, he said his prayers, now, he prayed them. Regenerating grace sets people on praying; you may as well find a living man without breath, as a living Christian without prayer. Yet even eminent disciples, like Ananias, sometimes stagger at the commands of the Lord. But it is the Lord's glory to surpass our scanty expectations, and show that those are vessels of his mercy whom we are apt to consider as objects of his vengeance. The teaching of the Holy Spirit takes away the scales of ignorance and pride from the understanding; then the sinner becomes a new creature, and endeavours to recommend the anointed Saviour, the Son of God, to his former companions.For I will show him,.... In vision, and by prophecy, either now, or hereafter; or by facts, as they come upon him:

how great things he must suffer for my name's sake; such as weariness, pain, and watchings, hunger, thirst, fastings, cold, and nakedness, perils on various accounts, and from different quarters, stripes, scourges, imprisonment, shipwreck, stoning, and death, of which he himself gives a detail, 2 Corinthians 11:23 so that Ananias had no reason to be afraid to go to him, and converse with him, and do unto him as he was directed.