Genesis 20:6

'ידעתי כי בתם לבבך וגו I KNOW THAT IN THE INTEGRITY OF THY HEART etc. — It is true that at first you had no intention of sinning, but you cannot claim innocency of hands (Genesis Rabbah 52:6) — because לא נתתיך I PERMITTED THEE NOT — It was not of your own will that you did not touch her, but it was “I” who withheld you from sinning, and “I” did not permit you the possibility to touch her (Genesis Rabbah 52:7). Similar examples of נתן in sense of permitting are, (31:7) “God permitted him not (לא נתנו)” and (Judges 15:1) “But her father did not permit him (ולא נתנו) to go in”.

וַיֹּ֩אמֶר֩ אֵלָ֨יו הָֽאֱלֹהִ֜ים בַּחֲלֹ֗ם גַּ֣ם אָנֹכִ֤י יָדַ֙עְתִּי֙ כִּ֤י בְתׇם־לְבָבְךָ֙ עָשִׂ֣יתָ זֹּ֔את וָאֶחְשֹׂ֧ךְ גַּם־אָנֹכִ֛י אֽוֹתְךָ֖ מֵחֲטוֹ־לִ֑י עַל־כֵּ֥ן לֹא־נְתַתִּ֖יךָ לִנְגֹּ֥עַ אֵלֶֽיהָ׃

And God said to him in a dream, I too know that thou didst this in the integrity of thy heart; for I also withheld thee from sinning against Me: therefore I did not permit thee to touch her.