וַיָּ֤קֶם אֶת־הָֽעַמּוּדִים֙ עַל־פְּנֵ֣י הַהֵיכָ֔ל אֶחָ֥ד מִיָּמִ֖ין וְאֶחָ֣ד מֵֽהַשְּׂמֹ֑אול וַיִּקְרָ֤א שֵׁם־הימיני [הַיְמָנִי֙] יָכִ֔ין וְשֵׁ֥ם הַשְּׂמָאלִ֖י בֹּֽעַז׃ (ס)
And he set up the pillars before the temple, one on the right hand, and the other on the left; and called the name of that on the right hand Jachin, and the name of that on the left Boaz.
Rashi on II Chronicles
before the Heichal At the entrance of the Heichal on the outside, in the vestibule, as is proven in I Kings (7:19): “And the chapiters that were upon the top of the pillars were of lily work in the vestibule.”