Mark 12:36-37

New English Translation

³⁶David himself, by the Holy Spirit, said,

‘The Lord said to my lord,^[a]
“Sit at my right hand,
until I put your enemies under your feet.”’^[b]

³⁷If David himself calls him ‘Lord,’ how can he be his son?”^[c] And the large crowd was listening to him with delight.

Mark 12:36 sn The Lord said to my lord. With David being the speaker, this indicates his respect for his descendant (referred to as my lord). Jesus was arguing, as the ancient exposition assumed, that the passage is about the Lord’s anointed. The passage looks at an enthronement of this figure and a declaration of honor for him as he takes his place at the side of God. In Jerusalem, the king’s palace was located to the right of the temple to indicate this kind of relationship. Jesus was pressing the language here to get his opponents to reflect on how great Messiah is.
Mark 12:36 sn A quotation from Ps 110:1.
Mark 12:37 tn Grk “David himself calls him ‘Lord.’ So how is he his son?” The conditional nuance, implicit in Greek, has been made explicit in the translation (cf. Matt 22:45).

New English Translation (NET)