Exodus 4:8

And it shall be if they will not believe in thee, and will not hear to the voice of the first sign, and they believed the voice of the latter sign.

Exodus 4:30-31

And Aaron will speak all the words which Jehovah spoke to Moses, and he will do the signs in the eyes of the people.

Deuteronomy 32:39

See ye now, that I, I am he, And no God with me: I will kill, and I will preserve alive; I struck through and through, and I will heal; And none takes away out of my hand.

2 Kings 5:7

And it will be when the king of Israel read the letter, and he will rend his garments and say, Am I God to kill and to make alive, that this one sent to me to gather a man from his leprosy? for surely know ye now, and see that he seeks occasion against me.

Job 5:18

For he will cause pain, and he will bind up: he will smite and his hands will heal.

Isaiah 28:10

For precept to precept, precept to precept; line to line, line to line; a little there, a little there:

John 12:37

And he having done so many signs before 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
And Aaron will speak all the words which Jehovah spoke to Moses, and he will do the signs in the eyes of the people.
Isaiah 28:10
For precept to precept, precept to precept; line to line, line to line; a little there, a little there:
John 12:37
And he having done so many signs before them, they did not believe in him:

That they

Deuteronomy 32:39
See ye now, that I, I am he, And no God with me: I will kill, and I will preserve alive; I struck through and through, and I will heal; And none takes away out of my hand.
2 Kings 5:7
And it will be when the king of Israel read the letter, and he will rend his garments and say, Am I God to kill and to make alive, that this one sent to me to gather a man from his leprosy? for surely know ye now, and see that he seeks occasion against me.
Job 5:18
For he will cause pain, and he will bind up: he will smite and his hands will heal.

General references

1 Kings 13:3
And, he will give in that day a sign, saying, This the sign which Jehovah spake: Behold, the altar rent and the fat which was upon it, poured out