1 Sam. 2:3

God is the God of knowledge. He knows everything.

"Omniscient" means the state of knowing everything.

1 Sam. 16:7; Acts 1:24; 15:8; Rom. 8:27; 1 Cor. 3:20

God knows a man's heart (cf. 1 Ki. 8:39; 2 Ch. 6:30).

1 Ch. 28:9

God searches the heart and understands all the intent of the thoughts (cf. 2 Ch. 16:9; Heb. 4:12).

Matt. 6:4, 18

God sees the things done in secret.

Heb. 4:13

There is no creature hidden from God's sight.

Matt. 6:32

God knows all our needs.

Matt. 10:29

Nothing happens apart from God's will (cf. Jas. 4:13-16).

Acts 2:23

Jesus was delivered to the Jews to be crucified by the determined counsel and foreknowledge of God.

Matt. 24:36

No one but God knows the day and hour of judgment.