44 The Lord concludes his case against Israel by offering them the opportunity to be forgiven and by setting before them the alternatives of renewed blessing (as a reward for repentance) and final judgment (as punishment for persistence in sin).
45 Traditionally, “let us reason together,” but the context suggests a judicial nuance. The Lord is giving the nation its options for the future.
46 The imperfects must be translated as modal (indicating capability or possibility) to bring out the conditional nature of the offer. This purification will only occur if the people repent and change their ways.
47 The imperfects must be translated as modal (indicating capability or possibility) to bring out the conditional nature of the offer. This purification will only occur if the people repent and change their ways.
48 Heb “though your sins are like red, they will become white like snow; though they are red like scarlet, they will be like wool.” The point is not that the sins will be covered up, though still retained. The metaphorical language must be allowed some flexibility and should not be pressed into a rigid literalistic mold. The people’s sins will be removed and replaced by ethical purity. The sins that are now as obvious as the color red will be washed away and the ones who are sinful will be transformed.

In other versions

“Come now, let us reason together, says the Lord:

though your sins are like scarlet,

they shall be as white as snow;

though they are red like crimson,

they shall become like wool.

“Come now, let us settle the matter,”

says the Lord.

“Though your sins are like scarlet,

they shall be as white as snow;

though they are red as crimson,

they shall be like wool.

“Come, let’s settle this,”

says the Lord.

“Though your sins are scarlet,

they will be as white as snow;

though they are crimson red,

they will be like wool.

“Come now, let’s settle this,”

says the Lord.

“Though your sins are like scarlet,

I will make them as white as snow.

Though they are red like crimson,

I will make them as white as wool.

“Come now, and let us argue,” says Yahweh.

“Even though your sins are like scarlet, they will be white like snow;

even though they are red like crimson, they shall become like wool.

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.

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