בְּהִתְהַלֶּכְךָ֨ ׀ תַּנְחֶ֬ה אֹתָ֗ךְ בְּֽ֭שָׁכְבְּךָ תִּשְׁמֹ֣ר עָלֶ֑יךָ וַ֝הֲקִיצ֗וֹתָ הִ֣יא תְשִׂיחֶֽךָ׃
When thou walkest, it shall lead thee, When thou liest down, it shall watch over thee; And when thou awakest, it shall talk with thee.
Read halakhic rulings (Jewish law) on Proverbs 6:22: and classical halakhic sources.