It seems likely that Jesus, being a scholarly young man, learned some Hebrew, but that's conjecture. It's more likely that Jesus spoke some Greek, as this

It seems likely that Jesus, being a scholarly young man, learned some Hebrew, but that’s conjecture. It’s more likely that Jesus spoke some Greek, as this language dominated the region after the conquests of Alexander the Great in the fourth century.

– Jay Parini

Jay Parini Quotes