Exodus 4:8

Jehovah said: If they will not believe you or be convinced by the first sign, then this one will convince them.

Exodus 4:30-31

Aaron told them everything Jehovah had said to Moses. He also did the miraculous signs for the people.

Deuteronomy 32:39

See now that I, even I, am he. There is no god besides me! It is I who put to death and give life. I have wounded and it is I who heals. There is no one who can deliver from my hand.

2 Kings 5:7

The king of Israel read the letter and tore his clothes and said: How can the king of Syria expect me to cure this man? Does he think that I am God, with the power of life and death? It is plain that he is trying to start a quarrel with me!

Job 5:18

God inflicts wounds and he bandages. He strikes but his hands make you well.

Isaiah 28:10

For precept must be upon precept, precept upon precept, line upon line, line upon line, here a little, there a little.

John 12:37

Even though he performed many miracles in front of them they did not believe in him.

Treasury of Scripture Knowledge

Summary

And it shall come to pass, if they will not believe thee, neither hearken to the voice of the first sign, that they will believe the voice of the latter sign.

General references

Bible References

If they

Exodus 4:30
Aaron told them everything Jehovah had said to Moses. He also did the miraculous signs for the people.
Isaiah 28:10
For precept must be upon precept, precept upon precept, line upon line, line upon line, here a little, there a little.
John 12:37
Even though he performed many miracles in front of them they did not believe in him.

That they

Deuteronomy 32:39
See now that I, even I, am he. There is no god besides me! It is I who put to death and give life. I have wounded and it is I who heals. There is no one who can deliver from my hand.
2 Kings 5:7
The king of Israel read the letter and tore his clothes and said: How can the king of Syria expect me to cure this man? Does he think that I am God, with the power of life and death? It is plain that he is trying to start a quarrel with me!
Job 5:18
God inflicts wounds and he bandages. He strikes but his hands make you well.

General references

1 Kings 13:3
The prophet went on to say: This altar will fall apart. The ashes on it will be scattered. Then you will know that Jehovah has spoken through me.