Charles H. Spurgeon on Psalms 91:1

He that dwelleth in the secret place of the Most High. Note, he who dwells in the secret place of the Most High is not he that conjures up one or two slight and fleeting acts of hope in Him, but the man that places in him an assiduous and constant confidence. In this way he establishes for himself in God by that full trust, a home, a dwelling place, a mansion, ...The Hebrew for he that dwelleth, is bvy, that is, dwelling in quietude, and resting, enduring and remaining with constancy. Le Blanc.