1 Kings 19:14

And he said, I have been very jealous for the LORD God of hosts: because the children of Israel have forsaken thy covenant, thrown down thy altars, and slain thy prophets with the sword; and I, I only, am left; and they seek my life, to take it away.

Deuteronomy 29:25

Then men shall say, Because they have forsaken the covenant of the LORD God of their fathers, which he made with them when he brought them forth from the land of Egypt:

Deuteronomy 31:20

For when I shall have brought them into the land which I swore to their fathers, that floweth with milk and honey; and they shall have eaten and filled themselves, and waxed fat; then will they turn to other gods, and serve them, and provoke me, and break my covenant.

1 Kings 19:9-10

And he came thither to a cave, and lodged there; and behold, the word of the LORD came to him, and he said to him, What doest thou here, Elijah?

Psalm 78:37

For their heart was not right with him, neither were they steadfast in his covenant.

Isaiah 1:4

Ah sinful nation, a people laden with iniquity, a seed of evil-doers, children that are corrupters: they have forsaken the LORD, they have provoked the Holy One of Israel to anger, they are gone away backward.

Isaiah 62:1

For Zion's sake I will not hold my peace, and for Jerusalem's sake I will not rest, until its righteousness shall go forth as brightness, and its salvation as a lamp that burneth.

Isaiah 62:6-7

I have set watchmen upon thy walls, O Jerusalem, which shall never hold their peace day nor night: ye that make mention of the LORD, keep not silence,

Jeremiah 22:9

Then they shall answer, Because they have forsaken the covenant of the LORD their God, and worshiped other gods, and served them.

Daniel 11:30

For the ships of Chittim shall come against him: therefore he shall be grieved, and return, and have indignation against the holy covenant: so shall he do; he shall even return, and have intelligence with them that forsake the holy covenant.

Hosea 6:7

But they like men have transgressed the covenant: there have they dealt treacherously against me.

Hebrews 8:9

Not according to the covenant that I made with their fathers, in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord.

Treasury of Scripture Knowledge

Summary

And he said, I have been very jealous for the LORD God of hosts: because the children of Israel have forsaken thy covenant, thrown down thine altars, and slain thy prophets with the sword; and I, even I only, am left; and they seek my life, to take it away.

Bible References

I have been

1 Kings 19:9
And he came thither to a cave, and lodged there; and behold, the word of the LORD came to him, and he said to him, What doest thou here, Elijah?
Isaiah 62:1
For Zion's sake I will not hold my peace, and for Jerusalem's sake I will not rest, until its righteousness shall go forth as brightness, and its salvation as a lamp that burneth.

Forsaken

Deuteronomy 29:25
Then men shall say, Because they have forsaken the covenant of the LORD God of their fathers, which he made with them when he brought them forth from the land of Egypt:
Deuteronomy 31:20
For when I shall have brought them into the land which I swore to their fathers, that floweth with milk and honey; and they shall have eaten and filled themselves, and waxed fat; then will they turn to other gods, and serve them, and provoke me, and break my covenant.
Psalm 78:37
For their heart was not right with him, neither were they steadfast in his covenant.
Isaiah 1:4
Ah sinful nation, a people laden with iniquity, a seed of evil-doers, children that are corrupters: they have forsaken the LORD, they have provoked the Holy One of Israel to anger, they are gone away backward.
Jeremiah 22:9
Then they shall answer, Because they have forsaken the covenant of the LORD their God, and worshiped other gods, and served them.
Daniel 11:30
For the ships of Chittim shall come against him: therefore he shall be grieved, and return, and have indignation against the holy covenant: so shall he do; he shall even return, and have intelligence with them that forsake the holy covenant.
Hosea 6:7
But they like men have transgressed the covenant: there have they dealt treacherously against me.
Hebrews 8:9
Not according to the covenant that I made with their fathers, in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord.