Charles H. Spurgeon on Psalms 4:8

When you have walked with God from morning until night, it remaineth that you conclude the day well, when you would give yourself to rest at night. Wherefore, first, look back and take a strict view of your whole carriage that day past. Reform what you find amiss; and rejoice, or be grieved, as you find you have done well or ill, as you have advanced or declined in grace that day. Secondly, since you cannot sleep in safety if God, who is your keeper (Psalm 121:4, 5), do not wake and watch for you (Psalm 127:1); and though you have God to watch when you sleep, you cannot be safe, if he that watcheth be your enemy. Wherefore it is very convenient that at night you renew and confirm your peace with God by faith and prayer, commending and committing yourself to God's tuition by prayer (Psalm 3:4, 5); Psalm 92:2), with thanksgiving before you go to bed. Then shall you lie down in safety. Psalm 4:8. All this being done, yet while you are putting off your apparel, when you are lying down, and when you are in bed, before you sleep, it is good that you commune with your own heart. Psalm 4:4. If possibly you can fall asleep with some heavenly meditation, then will your sleep be more sweet (Proverbs 3:21, 24, 25); and more secure (Proverbs 6:21, 22); your dreams fewer, or more comfortable; your head will be fuller of good thoughts (Proverbs 6:22), and your heart will be in a better frame when you awake, whether in the night or in the morning. Condensed from Henry Scudder's Daily Walk, 1633.