1 Samuel 20:3

And David sware again and said, "Thy father knoweth that I have found grace in thine eyes and therefore he thinketh, 'Jonathan shall not know it, lest he be sorry.' For in very deed even as truly as the LORD liveth, and as truly as thy soul liveth, there is but a step between me and death."

Deuteronomy 6:13

But fear the LORD thy God and serve him, and swear by his name,

1 Samuel 25:26

And now my lord as sure as the LORD liveth and as thy soul liveth, the LORD hath withholden thee from coming to shed blood and from avenging thyself with thine own hand. Furthermore, I pray God that thine enemies and they that intend to do my lord evil, may be as Nabal.

1 Samuel 27:1

Then thought David in his heart, "I may perish, one day or other, by the hands of Saul. There is no better for me, than to flee into the land of the Philistines; that Saul, of very despair to find me, may cease to seek me anymore in all the coasts of Israel: for so I may escape his hand."

2 Kings 2:6

And Elijah said to him, "Tarry, I pray thee, here: for the LORD hath sent me to Jordan." But he said, "As surely as the LORD liveth, and as thy soul liveth, I will not leave thee." And so they went both of them together.

1 Samuel 1:26

and then she said, "Oh my lord, as truly as thy soul liveth my lord, I am the woman that stood by thee here, praying unto the LORD.

2 Kings 2:2

Elijah and Elisha were going from Gilgal, and Elijah said to Elisha, "Tarry here, I pray thee, for the LORD hath sent me to Bethel." But Elisha said, "As surely as the LORD liveth, and as thy soul liveth, I will not leave thee." And when they came to Bethel,

2 Kings 2:4

Then said Elijah to Elisha, "Tarry here a fellowship: for the LORD hath sent me to Jericho." And he said, "As surely as the LORD liveth, and as surely as thy soul liveth, I will not leave thee." And so they went to Jericho.

Deuteronomy 28:66

And thy life shall hang before thee, and thou shalt fear both day and night and shalt have no trust in thy life.

1 Samuel 17:55

When Saul saw David go forth against the Philistine, he said unto Abner the captain of his host, "Abner, whose son is this lad?" And Abner answered, "As truly as thy soul liveth, O king, I cannot tell."

2 Samuel 15:21

And Ittai answered the king and said, "As surely as the LORD liveth, and as surely as my lord the king liveth: in what place my lord the king shall be, whether in death or life, even there will thy servant be."

Psalm 116:3

The snares of death compassed me round about, the pains of hell got hold upon me.

Jeremiah 4:2

And shalt swear, 'The LORD liveth' in truth, in equity and righteousness: and all people shall be fortunable and joyful in him."

Jeremiah 38:16

So the king swore an oath secretly unto Jeremiah, saying, "As truly as the LORD liveth, that made us these souls, I will not slay thee, nor give thee in to the hands of them that seek after thy life."

1 Corinthians 15:30-31

Yea, and why stand we in jeopardy every hour?

2 Corinthians 1:9-10

Also we received an answer of death in ourselves, and that was done because we should not put our trust in ourselves, but in God, which raiseth the dead to life again -

Hebrews 6:16

Men verily swear by him that is greater than themselves; And an oath to confirm the thing, is among them an end of all strife.

Treasury of Scripture Knowledge

Summary

And David sware moreover, and said, Thy father certainly knoweth that I have found grace in thine eyes; and he saith, Let not Jonathan know this, lest he be grieved: but truly as the LORD liveth, and as thy soul liveth, there is but a step between me and death.

General references

Bible References

But truly

1 Samuel 25:26
And now my lord as sure as the LORD liveth and as thy soul liveth, the LORD hath withholden thee from coming to shed blood and from avenging thyself with thine own hand. Furthermore, I pray God that thine enemies and they that intend to do my lord evil, may be as Nabal.
1 Samuel 27:1
Then thought David in his heart, "I may perish, one day or other, by the hands of Saul. There is no better for me, than to flee into the land of the Philistines; that Saul, of very despair to find me, may cease to seek me anymore in all the coasts of Israel: for so I may escape his hand."
2 Samuel 15:21
And Ittai answered the king and said, "As surely as the LORD liveth, and as surely as my lord the king liveth: in what place my lord the king shall be, whether in death or life, even there will thy servant be."
2 Kings 2:2
Elijah and Elisha were going from Gilgal, and Elijah said to Elisha, "Tarry here, I pray thee, for the LORD hath sent me to Bethel." But Elisha said, "As surely as the LORD liveth, and as thy soul liveth, I will not leave thee." And when they came to Bethel,

But a step

1 Samuel 27:1
Then thought David in his heart, "I may perish, one day or other, by the hands of Saul. There is no better for me, than to flee into the land of the Philistines; that Saul, of very despair to find me, may cease to seek me anymore in all the coasts of Israel: for so I may escape his hand."
Deuteronomy 28:66
And thy life shall hang before thee, and thou shalt fear both day and night and shalt have no trust in thy life.
Psalm 116:3
The snares of death compassed me round about, the pains of hell got hold upon me.
1 Corinthians 15:30
Yea, and why stand we in jeopardy every hour?
2 Corinthians 1:9
Also we received an answer of death in ourselves, and that was done because we should not put our trust in ourselves, but in God, which raiseth the dead to life again -

General references

Psalm 118:13
They thrust at me, that I might fall; but the LORD was my help.