Genesis 20:16

וּ לְ שָׂרָה אָמַר הִנֵּה נָתַתִּי אֶלֶף כֶּסֶף לְ אָחִיךְ הִנֵּה הוּא לָךְ כְּסוּת עֵינַיִם לְ כֹל אֲשֶׁר אִתָּךְ וְ אֵת כֹּל וְ נֹכָחַת

And to ContentiousWoman he has said, `Behold, I have given a thousand of a silver-one to your brother. Behold, himself is to-yourself a covering of eyes, to the whole who is את-yourself and אֶת-the whole, and she-being-justified.`⁷¹²

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and she-being-justified. Hebrew וְנֹכָֽחַת. Niphal Participle verb Feminine singular. From yakach (#3198) to decide, reason with, correct, adjudge, prove. This is where the NT concept of justification comes from. It has to do with proving oneself or another right. Here it is a participle in the Niphal form which is a passive (reflexive) verb which means Hagar is being justified. The same verb form appears here in the plural reflexive,

“Walk, now, and let ourselves reason [yachach], is saying Yahweh. If they are becoming the misses of yourselves like scarlet-worm, like the Snow they are causing to whiten. If they cause to be red like the Maggot-worm, like wool they are becoming.” Isaiah 1:18 literal

It’s as though Elohim is speaking as “Us” again just as he did in Genesis 1:26…