Both: this word relates to the two following verbs; as soon as I am laid down, I will quietly compose myself to sleep; whereas many lie down upon their beds, and cannot sleep through distracting cares or troubles. Or, in like manner, i.e. as they do who have abundance of corn and wine, of whom he last spoke, Luke 12:19. In peace; either,
1. In outward peace or safety, as the next clause explains it. Or,
2. In inward peace or tranquillity of mind, as Luke 2:29, resting securely upon God's promises, and the conduct of his wise and gracious providence. Thou, Lord, only makest me dwell in safety; I owe not my safety to my own valour or wisdom, nor to the courage of my followers, but to thee only. Or, thou, Lord, makest me to dwell alone in safety; either, 1. Alone, or apart from mine enemies: compare Deuteronomy 33:28. Or rather,
2. Though I be in a manner alone, i.e. forsaken and destitute of friends or helpers, as that word is used, Psalms 112:7 Lamentations 1:1.