וַיֹּ֣אמֶר דָּוִ֗ד אֶל־אֶבְיָתָ֤ר הַכֹּהֵן֙ בֶּן־אֲחִימֶ֔לֶךְ הַגִּֽישָׁה־נָּ֥א לִ֖י הָאֵפֹ֑ד וַיַּגֵּ֧שׁ אֶבְיָתָ֛ר אֶת־הָאֵפֹ֖ד אֶל־דָּוִֽד׃
And David said to Abiathar the priest, the son of Ahimelech: ‘I pray thee, bring me hither the ephod.’ And Abiathar brought thither the ephod to David.
Read kabbalistic (mystical) interpretation of I Samuel 30:7: and classical mystical sources.