“He raises his head.” (110:7)
The Psalmist is speaking of a person whose posture suggests that he is confident that he is under the protection of God, a hero, secure in his ability to succeed. This is in contrast to the person who advises “Keep your head down” or “Keep your nose to the grindstone,” who comes from the opposite perspective, suggesting that we keep a low profile and not call attention to ourselves.
During the most important Jewish prayers, we stand upright in an attentive, dignified posture. When addressing the Blessed Holy One, we want to present ourselves well. We do well to approach others with the same confident posture.