"In this atmosphere of deeply-rooted trust, which is the atmosphere of faith, the Psalmist (in Ps [124] 125) reassures “the upright of heart”, the believers. Their situation in itself can be worrying because of the tyranny of the wicked, who wish to impose their domination.
There might also be a temptation for the just to make themselves accomplices of evil to avoid serious difficulties, but the Lord protects them from oppression: “For the sceptre of the wicked shall not rest over the land of the just” (Ps 125[124]: 3); at the same time, he preserves them from the temptation to turn their hands to evil (cf. ibid.).
Thus, the Psalm instils deep trust in the soul. This is a powerful help in facing difficult situations when the external crisis of loneliness, irony and contempt of believers is associated with the interior crisis that consists of discouragement, mediocrity and weariness. We know this situation, but the Psalm tells us that if we have trust, we are stronger than these evils."
(Pope Benedict XVI, General Audience, n.2, Aug 3, 2005)