Psalms 107:18

Their soul abhorreth all manner of meat - All food; all that is to be eaten. The word rendered “abhorreth” is a word which is used with reference to anything that is abominable or loathsome; that from which we turn away with disgust. The language is expressive of sickness, when we loathe all food.

And they draw near unto the gates of death - They are sick, and are ready to die. The reference is to the under world - the world where the dead are supposed to dwell. This is represented here as a city which is entered through gates. See the notes at Psalms 9:13.