“The sword of Jehovah!
How long will you not be quiet?
Go back into your sheath.
Take your rest and be silent.
How can it be quiet
When Jehovah has given it a command?”
~Jeremiah 47:6,7

When God pronounces judgment against someone, his word is as good as done.
His word ‘does not return to him without results […] It will certainly accomplish whatever is his delight, and it will have success in what he sends it to do.’ (Isa. 55:10,11)
In contrast, us humans are subject to many circumstances, most of which are outside of our control, and many of our plans fail to come to fruition. (Jam. 4:13,14)
Bearing that in mind, the best way we can ensure our plans will be successful is if we commit our ways to Jehovah. (Ps. 37:5)
Circumstances will try our faith and patience, but God promises to bring about justice to those who serve him. (De. 32:10; Ps. 37:7-9)