John Chrysostom
Another source, whose identity is unknown, refers to holiness. A third source, also unidentified, speaks of holiness. The phrase "And bless the Lord" prompts a reflection on the significance of praying at night. The intent behind this instruction is to remind us not to squander the entire night in slumber, suggesting that our prayers attain greater purity when our minds are unburdened and less encumbered by worries. Consider the situation where one decides to visit the sanctuary at night; it is hard to conceive how one who neglects to pray at home during those hours can expect forgiveness. The Prophet encourages you to rise from your bed and directs you to the temple, urging you to devote the night there; yet, you might still choose to remain at home without engaging in prayer.
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The designation of holiness is significant, implying that prayer should be free from wicked thoughts, unrepentant hearts, greed, and any other sins that can lead to the ruin of the soul. "And bless the Lord." True blessing is realized when one's life aligns with their words—when you honor the Creator through your actions, echoing the message of the Gospel: "Let your light shine before men, that they may see your good works and glorify your Father in heaven" (Matthew 5:16).