The Lord says to my Lord: “Sit at my right hand, until I make your enemies your footstool.” Psalm 110:1 (Jesus quotes this in Mark 12, which we read last week.)
Now add one more observation about the Psalms in general: The Psalms are inspired by God. They are not merely the word of man but also the word of God. What that means is that God guided what was written and arranged so that the Psalms teach the truth and, when properly understood, they give the right direction to the emotions. One of the reasons we believe that the Psalms are divinely inspired and trustworthy is that Jesus does.
In Mark 12:36, Jesus quotes Psalm 110:1 and said, “David himself, in [or by] the Holy Spirit, declared, “‘The Lord said to my Lord, Sit at my right hand, until I put your enemies under your feet.’” Jesus believes that David spoke by the Holy Spirit (as 2 Peter 1:21 says). In John 10:35, he quotes Psalm 82:6 and says, “Scripture cannot be broken.” And in John 13:18 he quotes Psalm 41:9 and says, “The Scripture will be fulfilled.” So Jesus has implicit faith in the reliability of the Psalms.
That accounts for the third part of our title for this series: “Thinking and Feeling with God.” With God means that the words of the psalmists are both man’s words and God’s words. What man expresses God is expressing for his purposes. Therefore, when we read and sing the psalms, our minds and hearts—our thinking and feeling—are being shaped by God.