King James Version (KJV)
Take fast hold of instruction; let her not go: keep her; for she is thy life.
Modern English
Keep hold of instruction; do not let go; guard her, for she is your life.
Hebrew
הַחֲזֵ֣ק בַּ֭מּוּסָר אַל תֶּ֑רֶף נִ֝צְּרֶ֗הָ כִּֽי הִ֣יא חַיֶּֽיךָ׃
haḥazeq bamvsar ʾal teref niṣreha kiy hiyʾ ḥayeyka