1 Kings 19:14

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

Deuteronomy 29:25

And men shall say, Because they have forsaken the covenant of Jehovah the God of their fathers, which he had made with them when he brought them forth out of the land of Egypt;

Deuteronomy 31:20

For I shall bring them into the land which I swore unto their fathers, which floweth with milk and honey; and they will eat and fill themselves, and wax fat, and will turn unto other gods, and serve them, and despise me, and break my covenant.

1 Kings 19:9-10

And there he went into a cave, and lodged there. And behold, the word of Jehovah came to him, and he said to him, What doest thou here, Elijah?

Psalm 78:37

For their heart was not firm toward him, neither were they stedfast in his covenant.

Isaiah 1:4

Ah sinful nation, a people laden with iniquity, a seed of evildoers, children that corrupt themselves! They have forsaken Jehovah; they have despised the Holy One of Israel; they are turned away backward.

Isaiah 62:1

For Zion's sake will I not hold my peace, and for Jerusalem's sake I will not be still, until her righteousness go forth as brightness, and her salvation as a torch that burneth.

Isaiah 62:6-7

I have set watchmen upon thy walls, Jerusalem; all the day and all the night they shall never hold their peace: ye that put Jehovah in remembrance, keep not silence,

Jeremiah 22:9

And they shall say, Because they have forsaken the covenant of Jehovah their God, and worshipped other gods, and served them.

Daniel 11:30

for ships of Chittim shall come against him; and he shall be grieved, and return, and have indignation against the holy covenant; and will practise; and he shall return and direct his attention to those that forsake the holy covenant.

Hosea 6:7

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

Hebrews 8:9

not according to the covenant which I made to their fathers in the day of my taking their hand to lead them out of the land of Egypt; because they did not continue in my covenant, and I did not regard them, 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 there he went into a cave, and lodged there. And behold, the word of Jehovah came to him, and he said to him, What doest thou here, Elijah?
Isaiah 62:1
For Zion's sake will I not hold my peace, and for Jerusalem's sake I will not be still, until her righteousness go forth as brightness, and her salvation as a torch that burneth.

Forsaken

Deuteronomy 29:25
And men shall say, Because they have forsaken the covenant of Jehovah the God of their fathers, which he had made with them when he brought them forth out of the land of Egypt;
Deuteronomy 31:20
For I shall bring them into the land which I swore unto their fathers, which floweth with milk and honey; and they will eat and fill themselves, and wax fat, and will turn unto other gods, and serve them, and despise me, and break my covenant.
Psalm 78:37
For their heart was not firm toward him, neither were they stedfast in his covenant.
Isaiah 1:4
Ah sinful nation, a people laden with iniquity, a seed of evildoers, children that corrupt themselves! They have forsaken Jehovah; they have despised the Holy One of Israel; they are turned away backward.
Jeremiah 22:9
And they shall say, Because they have forsaken the covenant of Jehovah their God, and worshipped other gods, and served them.
Daniel 11:30
for ships of Chittim shall come against him; and he shall be grieved, and return, and have indignation against the holy covenant; and will practise; and he shall return and direct his attention to those that forsake the holy covenant.
Hosea 6:7
But they like Adam have transgressed the covenant: there have they dealt treacherously against me.
Hebrews 8:9
not according to the covenant which I made to their fathers in the day of my taking their hand to lead them out of the land of Egypt; because they did not continue in my covenant, and I did not regard them, saith the Lord.