The writer of Psalm 118 realised that the solution to mankinds prtoblems would not be solved by relying on mankind - something would always go wrong
And throughout history it always has done.
Religion isn't much use either.
Surprised to see this in writing? Throughout the Old Testament, the message from God via the prophets was that GOD HATES RELIGION!
Here is Amos ...
The Lord says, “I hate your religious festivals; I cannot stand them! When you bring me burnt offerings and grain offerings, I will not accept them; I will not accept the animals you have fattened to bring me as offerings. Stop your noisy songs; I do not want to listen to your harps.
... and Micah.
What shall I bring to the Lord, the God of heaven, when I come to worship him? Shall I bring the best calves to burn as offerings to him? Will the Lord be pleased if I bring him thousands of sheep or endless streams of olive oil? NO.
So it comes as no surprise that the oft described "gentle Jesus meek and mild" went into the Temple and kicked out all the traders and con-artists. It was violent!
When they arrived in Jerusalem (the day after Palm Sunday), Jesus went to the Temple and began to drive out all those who were buying and selling. He overturned the tables of the money changers and the stools of those who sold pigeons. He then taught the people.
If "religion" doesn't work, then what does?