וַיֹּ֣אמֶר דָּוִ֔יד לִכְנוֹס֙ אֶת־הַגֵּרִ֔ים אֲשֶׁ֖ר בְּאֶ֣רֶץ יִשְׂרָאֵ֑ל וַיַּעֲמֵ֣ד חֹֽצְבִ֗ים לַחְצוֹב֙ אַבְנֵ֣י גָזִ֔ית לִבְנ֖וֹת בֵּ֥ית הָאֱלֹהִֽים׃
And David commanded to gather together the strangers that were in the land of Israel; and he set masons to hew wrought stones to build the house of God.
Read kabbalistic (mystical) interpretation of I Chronicles 22:2: and classical mystical sources.