But eventually we need to come to the point that David does in verses 22 and 23 where he encourages both himself and others to trust the Lord.
22 {Cast/Throw} {thy burden/your cares} upon the LORD,
and he shall sustain thee:
he {shall never suffer/will never allow/will never let} the {righteous/godly} {to be moved/to be shaken/to be upended/fall}.23 But {thou/you}, O God, shalt bring {them/the wicked} down {into/to} the {pit of destruction/deep Pit/pit of corruption}:
{bloody and deceitful men/Men of bloodshed and deceit/Violent and deceitful people/bloodthirsty and deceitful men} {shall/will} not live {out/even} half {their days/a normal lifespan};
{but/But as for me} I {will trust/trust} in {thee/you}.
So, as you and I struggle with the reality of being betrayed by people that we trust in this life, let’s remember the resources that we have in Psalm 55 and emulate the steps that David takes in dealing with the betrayal in his life. In this way, I trust that the Lord will be pleased to help us deal with the awful reality of betrayal.