Isaiah
Isaiah 59:2ESV·traditional attribution

but your iniquities have made a separation between you and your God, and your sins have hidden his face from you so that he does not hear.

Matthew Henry Presbyterian @wholebiblehenry

The prophet here rectifies the mistake of those who had been quarrelling with God because they had not the deliverances wrought for them which they had been often fasting and praying for, Isa 58:3. Now here he shows, I. That it was not owing to God. They had no reason to lay the fault upon him that they were not saved out of the hands of their enemies; for, 1.

Commenting on Isaiah 59:1-8

John Gill Reformed Baptist @doctorgill

Like a partition wall dividing between them, so that they enjoy no communion with him in his worship and ordinances; which is greatly the case of the reformed churches: they profess the true God, and the worship of him, and do attend the outward ordinances of it; but this is done in such a cold formal way, and such sins and wickedness are perpetrated and...

Jamieson-Fausset-Brown Reformed @jfbcommentary

hid--Hebrew, "caused Him to hide" (Lam 3:44).