Psalm 55

Psalm 55 appears to be a psalm that David records as he flees from his son Absalom. 2Sam 15
He hastens his escape into the wilderness. 2sam 15:23, Ps 55:7-8 David mourns over his close counsellor betraying him. (Ps 55:12-14) He ends the Psalm with words that become prophetic of both his son Absalom and of Shimei. "bloody and deceitful men shall not live out half their days.
In the midst of this awful trial of betrayal, David gives these words, (vs 22)" cast thy burden upon the LORD and he shall sustain thee: he shall never suffer the righteous to be moved".
I desire to daily give my burden to the LORD. I want to trust him to keep me and deliver me as my need requires.
Peter later echos similar words when he says (1Peter 5:6) humble yourselves under the mighty hand of God that he might exalt you in due time: casting all your care upon him; for he careth for you".
Rather than casting stones and dust upon others as Shimei did to David, I want to give or cast my burden upon the LORD.

Dont be eaten up or consumed by the unrighteous actions of others. Dont seek to retaliate, but rather take it to the LORD.