וּשְׁמוּאֵ֕ל מְשָׁרֵ֖ת אֶת־פְּנֵ֣י יְהוָ֑ה נַ֕עַר חָג֖וּר אֵפ֥וֹד בָּֽד׃
But Samuel ministered before the LORD, being a child, girded with a linen ephod.
Read Kabbalistic (mystical) interpretations of I Samuel 2:18: Zohar and classical Jewish mystical sources, free online.