18, 19. (a) What does it mean to “count our days in such a way that we may bring a heart of wisdom in”? (b) Our exercising wisdom will move us to do what?

¹⁸ The psalmist next sings: “Who is there knowing the strength of your anger and your fury according to the fear of you?

Psalm 90:11,

Not one of us fully knows the strength of God’s anger or the extent of his fury, and this should heighten our reverential fear of Jehovah. It should, in fact, motivate us to ask him “just how [we can] count our days in such a way that we may bring a heart of wisdom in.”