This is a superscription that tells about the psalm. Some scholars say that this is part of the scripture and some say that it is not. (See "What are Superscriptions in Psalms" in [Introduction to Psalms](../front/intro.md).)
The writer speaks of God as if he were a place where people can go for safety. Alternate translation: "God gives us safety and strength" (See: [[rc://en/ta/man/jit/figs-metaphor]])