Isaiah 1:15
When you spread out your hands in prayer,
What it says
God refuses to hear their prayers because their hands are full of blood.
What it is doing
This verse links rejected prayer to moral guilt.
In context
10Hear the word of the LORD, 11“What good to Me is your multitude of sacrifices?” 12When you come to appear before Me, 13Bring your worthless offerings no more; 14I hate your New Moons 15When you spread out your hands in prayer, 16Wash and cleanse yourselves. 17Learn to do right; 18“Come now, let us reason together,” 19If you are willing and obedient, 20But if you resist and rebel,