Isaiah 63:10

Isa 63:10 But they rebelled, and vexed his holy Spirit: therefore he was turned to be their enemy, [and] he fought against them.

Ver. 10. But they rebelled, and vexed his Holy Spirit. ] By sinning against light, checks of conscience, motions of the Spirit, mercies without measure, &c. Junius thinketh this a clear place for proof of the Trinity in unity.

So he was turned to be their enemy. ] This was an ill turn for them; abused mercy turneth into fury; with the froward God will wrestle. Psa 18:26