Isaiah 1:17 KJV
Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.
Isaiah 1:15–19 KJV Chapter Context
15
And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.
16
Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;
17
Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.
18
Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
19
If ye be willing and obedient, ye shall eat the good of the land: