Job 11 v 7 Canst thou by searching find out God? canst thou find out the Almighty unto perfection?
8 It is as high as heaven; what canst thou do? deeper than hell; what canst thou know?
9 The measure thereof is longer than the earth, and broader than the sea.
1 Cor 2 v 10 But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God. 11 For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.
This is evidence that the Holy Spirit is the same being as God himself. Only God can search the being of God.