Jeremiah 23:23-24
“Am I a God near at hand,” says the LORD, “And not a God afar off? Can anyone hide himself in secret places, so I shall not see him?” says the LORD; “Do I not fill heaven and earth?” says the LORD.”

In this part of Jeremiah, God is expressing his disgust for false prophets, who think that they can spread false testimony about what “God” is saying. God reminds the false prophets–and everyone else–that He is both close by and omniscient. He is right beside the people who need Him, at the same moment that He is watchful over all Creation. No one can hide from God or do anything that God does not know of. The false prophets believe they’re getting away with putting fake divine prophecy about, but God’s rhetorical questions in this verse say differently.

To the casual reader, this can sound scary, as if God is a “Big Brother” figure who just looks over our shoulders all the time. But this is actually a comforting verse–God knows all and watches over all, even when we think He has forgotten us, even when we think that He does not care what happens to us. He witnesses all the evil that goes on in our world and moves to right it according to His timetable (not necessarily ours), and yet He is right beside us when we need Him, too.