For those nights you can't sleep because of worry or sadness remember:
"it is vain for you to rise up early, to sit up late, to eat the bread of sorrows;
for so He gives His beloved sleep" Psalm 127:1

When you are tempted to worry remember the Word of the LORD to you:
'Not by might nor by power, but by my Spirit,' says the LORD Almighty.
"What are you, O mighty mountain? Before Zerubbabel you will become level ground.
- Zechariah 4:6-7

For: "unless the LORD builds the house, they labour in vain who build it; unless the LORD guards a city, the watchman stays awake in vain" Psalm 127:1