Matthew 5:34

But I say to you, do not swear at all: either by heaven, for it is God's throne;

Matthew 21:20

And when the disciples saw it, they marveled, saying, "How did the fig tree wither away so soon?"

Luke 15:18

I will arise and go to my father and will say to him, "Father, I have sinned against heaven and before you.

Luke 15:21

And the son said to him, 'Father, I have sinned against heaven and before you; I am no longer worthy 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 swear at all: either by heaven, for it is God's throne;
Matthew 21:20
And when the disciples saw it, they marveled, saying, "How did the fig tree wither away so soon?"
Luke 15:18
I will arise and go to my father and will say to him, "Father, I have sinned against heaven and before you.