a night to be much observed] Heb. a night of observations. Though the destruction of the Egyptians, and the preservation of the Israelites, were in the night, the solemne memoriall of that memorable justice and mercy, was to be observed in the day, and much observed, because it was extraordinary great: for men must endevour to be proportionably mindfull, and gratefull for great favours: so that not onely ungratitude, but too little gratefulnesse, is a great fault, 2 Chron. 32. vers. 25.