Matthew 5:34

But I say to you, do not take any oath, [saying] 'by heaven,' for it is God's throne;

Matthew 21:20

When His disciples saw this, they marvelled, saying, "How could the fig tree wither up so suddenly?"

Luke 15:18

I will get up and go to my father and say to him, Father, I have sinned against [the God of] heaven and against you.

Luke 15:21

Then the son said to him, 'Father, I have sinned against [the God of] heaven and against you. I do not deserve to be called your son.'

Treasury of Scripture Knowledge

Summary

And whereas they commanded to leave the stump of the tree roots; thy kingdom shall be sure unto thee, after that thou shalt have known that the heavens do rule.

Bible References

The heavens

Matthew 5:34
But I say to you, do not take any oath, [saying] 'by heaven,' for it is God's throne;
Matthew 21:20
When His disciples saw this, they marvelled, saying, "How could the fig tree wither up so suddenly?"
Luke 15:18
I will get up and go to my father and say to him, Father, I have sinned against [the God of] heaven and against you.