King James Version (KJV) Authorized Version 1611
Read Full Chapter (Isaiah 1)

Isaiah 1:18-20 KJV

"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. If ye be willing and obedient, ye shall eat the good of the land: But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it."
Isaiah Chapter 1, Verse 18-20

Isaiah 1:18-20 in Context (Verses 15–23 KJV)

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:
20
But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it.
21
¶ How is the faithful city become an harlot! it was full of judgment; righteousness lodged in it; but now murderers.
22
Thy silver is become dross, thy wine mixed with water:
23
Thy princes are rebellious, and companions of thieves: every one loveth gifts, and followeth after rewards: they judge not the fatherless, neither doth the cause of the widow come unto them.