John Gill Commentary Deuteronomy 23:5

"Nevertheless Jehovah thy God would not hearken unto Balaam; but Jehovah thy God turned the curse into a blessing unto thee, because Jehovah thy God loved thee." — Deuteronomy 23:5 (ASV)

Nevertheless, the Lord your God would not hearken to Balaam ,
&c.] To his solicitations, and the methods he took to prevail on the Lord to suffer him to curse Israel, which he gladly would have done for the sake of Balak's reward:

but the Lord your God turned the curse into a blessing to you ;
in the very mouth of Balaam, as the Targum of Jonathan; for when he opened his mouth and Balak expected he would have cursed Israel, and he intended it, could he have been permitted, the Lord overruled his tongue, and put such words into his mouth, that instead of cursing Israel, he blessed him; see (Numbers 23:11) ,

because the Lord your God loved you ;
and therefore would not suffer them to be cursed; for whom the Lord loves they are blessed, and shall be so in time and to eternity.