Rom 9:19-24, 1 Cor 1:18
The Old Testament says that we cannot say that the God who made us is without wisdom. (Isa 29:16)
Isa 29:16 Surely your turning of things upside down shall be esteemed as the potter's clay: for shall the work say of him that made it, He made me not? or shall the thing framed say of him that framed it, He had no understanding?
God was angry with the Jews to make known the power of God, Christ. (Rom 9:19-24, 1 Cor 1:18)
Rom 9:19 Thou wilt say then unto me, Why doth he yet find fault? For who hath resisted his will? 20 Nay but, O man, who art thou that repliest against God? Shall the thing formed say to him that formed it, Why hast thou made me thus? 21 Hath not the potter power over the clay, of the same lump to make one vessel unto honour, and another unto dishonour? 22 What if God, willing to shew his wrath, and to make his power known, endured with much longsuffering the vessels of wrath fitted to destruction: 23 And that he might make known the riches of his glory on the vessels of mercy, which he had afore prepared unto glory, 24 Even us, whom he hath called, not of the Jews only, but also of the Gentiles?
1 Cor 1:18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.