LOL! I suggest you look it up in the Hebrew. It does NOT say "Lord" twice, - and it says it is a psalm of DAVID, - whom fits ALL of the qualifications -
Psa 110:1 A Psalm of David. YHVH said
A perfect example of taking a verse and making it say what it doesn't say!
Psalms 110:1 (ESV Strong's) 1 The Lord says to my Lord: “Sit at my right hand, until I make your enemies your footstool.”
lord (David,) Sit thou at my right hand, until I make thine enemies thy footstool.
Psa 110:2 YHVH shall send the rod of thy strength out of Zion: rule thou in the midst of thine enemies.
Psa 110:3 Thy people shall be
willing in the day of thy power, in the beauties of holiness from the womb of the morning: thou hast the dew of thy youth.
Psa 110:4 YHVH hath sworn, and will not repent, Thou art a priest for ever
after the order of Melchizedek.
I showed he was both King and Priest as Melchizedek was. = He wore the Priest's Ephod and made the sacrifices.
2Sa 6:13 And it was so,
that when they that bare the ark of the LORD had gone six paces, he sacrificed oxen and fatlings.
And David danced before the LORD with all his
might; and David was girded with a linen ephod.
2Sa 6:15 So David and all the house of Israel brought up the ark of the LORD with shouting, and with the sound of the trumpet.
2Sa 6:16 And as the ark of the LORD came into the city of David, Michal Saul's daughter looked through a window, and saw king David leaping and dancing before the LORD; and she despised him in her heart.
2Sa 6:17 And they brought in the ark of the LORD, and set it in his place, in the midst of the tabernacle
that David had pitched for it: and David offered burnt offerings and peace offerings before the LORD.
Note the Priest's EPHOD in the picture
Hebrews 1:8-13 (ESV Strong's) 8 But of the Son he says, “Your throne, O God, is forever and ever, the scepter of uprightness is the scepter of your kingdom. 9 You have loved righteousness and hated wickedness; therefore God, your God, has anointed you with the oil of gladness beyond your companions.” 10 And, “You, Lord, laid the foundation of the earth in the beginning, and the heavens are the work of your hands;11 they will perish, but you remain; they will all wear out like a garment,12 like a robe you will roll them up, like a garment they will be changed. But you are the same, and your years will have no end.”13 And to which of the angels has he ever said, “Sit at my right hand until I make your enemies a footstool for your feet”?
Hebrews 5:5-6 (ESV Strong's) 5 So also Christ did not exalt himself to be made a high priest, but was appointed by him who said to him, “You are my Son, today I have begotten you”; 6 as he says also in another place, “You are a priest forever, after the order of Melchizedek.”
Hebrews 7:14-17 (ESV Strong's) 14 For it is evident that our Lord was descended from Judah, and in connection with that tribe Moses said nothing about priests.15 This becomes even more evident when another priest arises in the likeness of Melchizedek, 16 who has become a priest, not on the basis of a legal requirement concerning bodily descent, but by the power of an indestructible life. 17 For it is witnessed of him, “You are a priest forever, after the order of Melchizedek.”
So you are suggesting there are "2" priests after the order of Melchizedek?
ALL of your much-much-much-later, - written after Jesus' death, - while Knowing Tanakh, - and wanting to fit Jesus into the Jewish Messiah role, verses, - makes all the Christian verses untrustworthy - when translating or understanding Jewish texts.
LANGE - David, at a time when the temple-worship was suspended, and from the absence of priests, exceptionally fulfilled priestly functions (2 Samuel 6), but immediately restored the legal order of things, and transferred the official authority of the priesthood to the Levites (2Sa_8:17
Psalms 108, 109, and 110, all say they are about DAVID.
Isn't it a bit convenient for Christians - to say it changes from David - to Jesus - in 110?
READ THIS - from a JEWISH site
"Psalm 110 was composed in the third person to be sung by the Levites, and thus reflects their point of view, for they would call their king “my master – adoni.” In other words, the Levites are saying that “God spoke to our master (King David). Sit at My right hand, until I make your enemies your footstool.”
It was composed at the beginning of David’s reign. When the Philistines heard that Israel had anointed David as king, they came to fight with him, David talks about his reassurance from G-d that He would fight with the Jews against their enemies. As it says:
“He arose and struck the Philistines until his hand was weary and did cleave to his sword and the Lord wrought a great victory that day.”(2 Samuel 23 v.l0)"
"How was David like Melchizedek?
A priest after the manner of Melchizedek does not refer to Jesus taking over the Levitical priesthood forever.2
This statement also refers to King David.
Melchizedek was non-Jewish
a King who lived during the times of Abraham as it says:
“And Melchizedek King of Salem brought forth bread and wine and he was a priest (Kohen) of G-d the most high” Genesis 14:18
Even thought he was not Jewish and could not be from the tribe of Levy, he is called a priest
(Kohen) because of his position of service. Similarly, Jethro (Moses’ father-in-law) was called a “priest (Kohen) of Midian.” Exodus 18:1"