1 Nephi 18:14
Why was it on the fourth day that the tempest began to be so bad?
We have agency to rebel or to choose to follow the Lord. Laman and Lemuel were given three days to change their minds on their own before the Lord brought on the big storm to accomplish His purpose to bring them all to the promised land.
From the Seminary Book of Mormon Student Manual
Be assured that there is a safe harbor. You can find peace amidst the storms that threaten you. Your Heavenly Father—who knows when even a sparrow falls—knows of your heartache and suffering. He loves you and wants the best for you. Never doubt this. While He allows all of us to make choices that may not always be for our own or even others’ well-being, and while He does not always intervene in the course of events, He has promised the faithful peace even in their trials and tribulations.
If we refuse to listen then God cannot and will not guide us.
After the trial of our faith, we will be blessed.
Hymn; Be Still My Soul 124
D&C 1011 Verily I say unto you, concerning your brethren whohave been afflicted, and apersecuted, and bcast out from theland of their inheritance—
197 Quickly I'll Obey