Romans 9:21

He argueth from the less to the greater, that if a potter hath power over his clay, to form it as he pleaseth, then God hath much more power over his creatures, to form them or order them as he listeth. God's authority over his creature, is greater than that of a potter over his clay. The potter made not his clay; but both clay and potter are made by God. Here is something implied, that as there is no difference in the matter or lump out of which the potter frameth diversity of vessels, so there is no difference in mankind; all men are alike by nature, and in the same corrupt state; both those who are elected, and those who are rejected, that are made vessels of mercy, or vessels of wrath. And here is this expressed, that as the potter maketh vessels of honour or dishonour, of nobler or viler use, out of the same lump, as he listeth, and is not bound to give a reason of his so doing to his pots; so God may choose some, and reject others, and give no account thereof unto his creatures. The potter takes nothing from the clay, of what form soever he makes it; and the Creator doth no wrong to the creature, however he doth dispose of it.