Translation:

33. If it be His Will He can still the Wind: then would they become motionless on the back of the (ocean). Verily in this are Signs for everyone who patiently perseveres and is grateful.

Notes (Tafseer)

4573. If we study such Signs in the right spirit, we learn the highest lessons for our spiritual life: on the one hand, patient perseverance with reliance on Allah, and on the other a feeling or attitude of grateful thanks to Allah, that He enables us to achieve so much in spite of our shortcomings, and forgives in us so much that deserves punishment and disaster.