1 Kgs 7:21

וַיָּ֨קֶם֙ אֶת־הָֽעַמֻּדִ֔ים לְאֻלָ֖ם הַֽהֵיכָ֑ל וַיָּ֜קֶם אֶת־הָעַמּ֣וּד הַיְמָנִ֗י וַיִּקְרָ֤א אֶת־שְׁמוֹ֙ יָכִ֔ין וַיָּ֨קֶם֙ אֶת־הָעַמּ֣וּד הַשְּׂמָאלִ֔י וַיִּקְרָ֥א אֶת־שְׁמ֖וֹ בֹּֽעַז׃

Thus he set up the pillars at the portico of the temple. The pillar to the south he named Jachin, and the pillar to the north he named Boaz.