Shared ground
Jesus publicly challenges a common teaching: that the Christ is simply “David’s son” (a David-line descendant and royal heir). He does this by quoting a psalm attributed to David and treating David’s words as Spirit-guided (an explicit claim in v. 36).
In the quoted line, two figures are distinguished: “The Lord” speaks to “my Lord.” The second “Lord” is invited to sit at God’s right hand and will ultimately have enemies brought under his feet. Jesus then highlights the tension: David calls this person “my Lord,” so it is not straightforward to reduce the Christ’s identity to “son of David” alone.
Where interpretation differs
Some read Jesus as rejecting the “son of David” idea outright. Others read him as correcting an incomplete slogan: the Christ can be David’s descendant, but must also be David’s superior in status.
A second difference concerns “my Lord” in David’s words. Some understand it as the coming Christ (the main point Jesus is pressing). Others think the psalm originally referred to a historical king or leader in David’s line, and Jesus uses it to show that Scripture itself allows for a figure greater than David.
Why the disagreement exists
The passage is short, and Jesus asks a question rather than giving a full, direct explanation of how both “Lord” and “son” fit together. Also, “son” can mean biological descendant, a royal title, or both (one of the passage’s pressure points). Finally, the psalm’s original setting can be read in more than one way, even though Jesus applies it to the Christ in his argument.
What this passage clearly contributes
Textually, Jesus affirms that the scribes commonly taught “Christ = son of David,” and he argues from Scripture that the Christ’s identity involves more than that. The quoted enthronement language (“sit at my right hand”) presents the Christ (or the figure Jesus is identifying with the Christ) as receiving divine-backed honor and victory over enemies. Mark also shows that ordinary listeners found Jesus’ handling of Scripture compelling in this temple setting.
Mark 12:35–37 Psalm 110:1