David next praised Yahweh for not allowing Israel's enemies to tear her to pieces as a vicious animal tears its prey. Israel had escaped as a bird that flies free when someone breaks the trap that snared it. Israel's helper was Yahweh, not any human deliverer (cf. 121:8). He is the Maker of heaven and earth (cf. 115:15; 121:2), the strongest of all deliverers.
This psalm and Psalm 121 both commemorate God's preservation of the Israelites. Psalm 121 is more personal and individualistic in its outlook whereas this one is more national and corporate. The preservation of God's people is a fit subject for praise in both respects. Israel has suffered from anti-Semitism for centuries, yet God has faithfully preserved His chosen people to the present day.
