From the early Church Fathers to now.
2 Patristic · 1 Jewish · 1 Medieval
“The Lord will send forth the sceptre of thy power out of Sion: rule thou in the midst of thy enemies.”
“Now they went about in the public place: with boldness they attacked even the market, and in the midst of enemies they prevailed, and that saying was fulfilled, "Be Thou Ruler in the midst among Thine enemies." This was a greater miracle, that they, arrested, cast into prison, should do such acts as these!”
“And what followeth? "The Lord shall send the rod of Thy power out of Sion." It appeareth, brethren, it most clearly appeareth, that the Prophet is not speaking of that kingdom of Christ, in which He reigneth for ever with His Father, Ruler of the things which are made through Him: for when doth not God the Word reign, who is in the beginning with God? For it is said, "Now unto the King eternal, immortal, invisible, the only wise God, be honour and glory for ever and ever." To what eternal King? To one invisible, incorruptible. For in this, that Christ is with the Father, invisible and incorruptible, because He is His Word, and His Power, and His Wisdom, and God with God, through whom all things were made; He is "King eternal;" but, nevertheless, that reign of temporal government, by which, through the mediation of His flesh, He called us into eternity, beginneth with Christians; but of His reign there shall be no end. His enemies therefore are made His footstool, while He is sitting on the right hand of His Father, as it is written; this is now going on, this will go on unto the end. ...”
“The staff of [This is] an expression of support, as (above 105:16): “every staff of bread.” The staff of your might the Lord will send from Zion When you return from the war and your men are weary and in pursuit, the Lord will send you Malchizedek, king of Salem, to bring out bread and wine (Gen. 14:14). rule in the war. in the midst of your enemies safely.”
“Under the Law in the mystery of the giving of the Law, Christ is symbolized by Moses' staff with which he chastised the Egyptians and dried up the sea, and which is the scepter of power which the Lord stretched forth from Sion.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.