Psalm 134— A Song of Ascents.
1 Behold, bless Yahweh, all you servants of Yahweh, who by night stand in the house of Yahweh! 2 Lift up your hands in the sanctuary, and bless Yahweh. 3 Yahweh who made heaven and earth bless you from Zion!
"This is the last of the fifteen psalms entitled MAHALOTH, or songs of degrees… It is ascribed to David by the Syriac, but has no title in the Hebrew.” (Joseph Sutcliffe)— “‘Behold, bless Yahweh, all you servants of Yahweh, who by night’ etc.— “during the evening service (Psalm 141:2), as opposed to morning (Psalm 92:2).” (Jamieson, Faussett, Brown)—“‘stand in the house of Yahweh!’ the reference being… to those officials of the tribe of Levi, both Levites and priests, who had charge of the Temple during the night.” (Paul E. Kretzmann) “They attended likewise to see that neither the fire on the altar nor the lamps in the candlestick went out. Probably it was usual for some devout and pious Israelites to sit up with them we read of one that departed not from the temple night or day, Luke 2:37.” (Matthew Henry) This was that eternal fire of God.
Stand — “The reference is to 2 Chronicles 29:11— ‘My sons, do not be negligent now, for the LORD has chosen you to stand before Him, to minister to Him, and to be His ministers and burn incense’; 2 Chronicles 30:16— ‘They stood at their stations after their custom, according to the law of Moses the man of God; the priests sprinkled the blood which they received from the hand of the Levites’; 2 Chronicles 31:2—‘And Hezekiah appointed the divisions of the priests and the Levites by their divisions, each according to his service, both the priests and the Levites, for burnt offerings and for peace offerings, to minister and to give thanks and to praise in the gates of the camp of the LORD.’ There were no seats in the Tabernacle or Temple. Compare Hebrews 10:11– ‘Every priest stands daily ministering and offering time after time the same sacrifices, which can never take away sins.’” (Bullinger's Companion Bible Notes)
“’Lift up your "hands in the sanctuary,’ by prayer “lifting up holy hands, without wrath and dissension.” (1 Timothy 2:8)—‘and bless Yahweh,’ by your prayers, as well as the works of you hands, that is your service.
“‘Yahweh who made heaven and earth bless you from Zion!’ by blessing His people. “The priests, having blessed God, turn and bless the people. The obvious allusion to the sacerdotal blessing (Numbers 6:23-27), favours the optative construction of this verse, which really includes a prediction—the Lord will bless thee.” (Joseph Addison Alexander) “The singular instead of the plural ‘bless you,’ because the words are taken from the form used by the High Priest in blessing the people, Numbers 6:24.” (J. J. Stewart Perowne) “And Yahweh spoke to Moses, saying: Speak to Aaron and his sons, saying, ‘This is the way you shall bless the children of Israel. Say to them: ‘The Lord bless you and keep you; the Lord make His face shine upon you, and be gracious to you; The Lord lift up His countenance upon you, and give you peace.’” (Numbers 6:23-27)— “‘Out of Zion,’ from the place of His residence among His people, just as He now sends forth His blessings through the work of the Church, whose pastors, missionaries, and teachers bring the Gospel to men everywhere, the object being to make them wise unto salvation…” (Paul E. Kretzmann) “It is addressed to the church as one person, and to each individual in this united, unit like church.” (Franz Delitzsch)
“The New Testament analogue to the Old Testament [Ark or] Temple is no outward [object or] building. That would be absurd confusing of the very nature of type and antitype. A material type must have a spiritual fulfilment. A rite cannot correspond to a rite, nor a building to a building. But the correspondence in Christianity to the Temple where God dwelt, and from which He scattered His blessings is twofold-one proper and original, the other secondary and derived. In the true sense, Jesus Christ is the Temple. In Him God dwelt; in Him, man meets God; in Him was the place of revelation; in Him the place of sacrifice. ‘In this place is one greater than the Temple,’ and the abiding of Jehovah above the mercy-seat was but a material symbol, shadowing and foretelling the true indwelling of all the fulness of the Godhead bodily in that true Tabernacle which the Lord hath pitched and not man. So the great fountain of all possible good and benediction which was opened for the believing Jew in ‘Zion,’ is opened for us in Jesus Christ who stood in the very court of the Temple, and called in tones of clear, loud invitation: ‘If any man thirst let him come unto Me and drink.’ We may each pass through the rent veil into the holiest of all, and there, laying our hand on Jesus, touch God, and opening our empty palm extended to Him, can receive from Him all the blessing that we need...” (Alexander MacLaren) in order to serve Him.