John Chrysostom
"There are diversities of gifts, but the same Spirit" (v. 4). First of all he admonishes the one who received a lesser gift and grieves because of it.
Why do you grieve, he says? Is it because you did not receive as much as another? But remember that this is a gift, not a debt, and you will receive comfort in your grief.
Therefore he directly expressed himself in this way: "There are diversities of gifts." He did not say "signs" or "miracles," but "gifts." By the name of gift he persuades the man not only not to grieve, but also to be thankful.
At the same time, he says, consider this. Although you received a gift of lesser measure, you were counted worthy to receive it from the same source as the one who received more. Therefore you have equal honor with him.
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You cannot say that the Spirit gave to him, but an angel gave to you. The Spirit gave both to you and to him.
Therefore he adds, "but the same Spirit." Though there is diversity in the gift, there is no diversity in the Giver. You and he received from one source.
"And there are diversities of ministries, but the same Lord" (v. 5).