Joab's gesture of falling to the ground and paying homage to King David is a profound expression of respect and gratitude. In ancient times, such acts were common ways to show submission and honor to a ruler. Joab's actions and words indicate that he feels deeply honored and relieved to have his request granted by the king. This moment underscores the importance of favor and approval from those in authority, especially in hierarchical societies like ancient Israel.
Joab's statement, "Today your servant knows that he has found favor in your eyes," reveals a sense of validation and acceptance. It suggests that Joab's relationship with the king is secure, and his loyalty is recognized. The granting of his request signifies trust and a positive rapport between Joab and David. This interaction can remind us of the value of humility, respect for authority, and the blessings that come from being in good standing with those who lead. It also reflects the broader biblical theme of seeking and valuing favor and grace from God and others.