Acts 1:24

And, praying, they said - Thou Lord! observer of the hearts of all men! shew forth whom thou hast chosen, - of these two, one; -

1 Samuel 16:7

But Yahweh said unto Samuel - Do not regard his countenance, or the height of his stature, for I have rejected him, - for it is not what man looketh to but what God looketh to. For, man, looketh to the outward appearance, but, Yahweh, looketh to the heart.

Jeremiah 17:10

I - Yahweh, Searching the heart, Testing the affections; And giving to every man According to his way, According to the fruit of his doings.

Acts 15:8

And, the heart-observing God, bare witness, - unto them, giving the Holy Spirit, just as, even unto us;

Acts 6:6

Whom they set before the Apostles, and, praying, they laid upon them their hands.

Revelation 2:23

and, her children, will I slay with death; - and all the assemblies shall get to know, that, I, am he that searcheth reins and hearts, and will give unto you, each one, according to your works.

Numbers 27:16

Let Yahweh, God of the spirits of all flesh, appoint a man over the assembly;

1 Kings 8:39

then wilt, thou thyself, hear in the heavens, in the settled place of thine abode, and forgive and act, and give unto every man according to all his ways, whose heart thou wilt know, - for, thou thyself alone, knowest the heart of all the sons of men;

1 Chronicles 28:9

Thou, therefore, Solomon my son, Know thou the God of thy father, and serve him with a perfect heart and with a willing soul, for, all hearts, doth Yahweh search, and, every devised purpose, doth he understand, - If thou seek him, He will be found of thee, but, if thou forsake him, He will cast thee off for ever.

1 Chronicles 29:17

But I know, O my God, that, thou, art proving the heart, and, with uprightness, wilt thou be pleased, - I, in the uprightness of my heart, have willingly offered all these things, now, therefore, thy people who are found here, have I seen with joy, offering willingly unto thee.

Psalm 7:9

Let the wrong of the lawless, I pray thee, come to an end, and establish thou him that is righteous, - for, a trier of hearts and reins, is God the righteous one.

Psalm 44:21

Would not, God, have searched into this, Seeing that, he, knoweth the secrets of the heart?

Proverbs 3:5-6

Trust thou in Yahweh, with all thy heart, and, unto thine own understanding, do not lean:

Proverbs 15:11

Hades and destruction, are before Yahweh, how much more then, the hearts of the sons of men.

Jeremiah 11:20

But, O Yahweh of hosts Who judgest righteously, Who triest affections and intellect, - Let me see thine avenging upon them, For unto thee, have revealed my cause.

Jeremiah 20:12

But O Yahweh of hosts - Testing the righteous Beholding the affections and the heart, - Let me see thine avenging upon them, For unto thee, have I laid bare my cause.

Luke 6:12-13

And it came to pass, in these days, that he went forth into the mountain to pray, and was spending the night in the prayer-house of God.

John 2:24-25

Jesus himself, however, was not trusting himself unto them, by reason of his understanding them all,

John 21:17

He saith unto him, the third time - Simon, son of John! art thou fond of me? Peter was grieved, that he said unto him, the third time, Art thou fond of me? and he said unto him - Lord! all things, thou, knowest: thou perceivest that I am fond of thee. Jesus saith unto him - Be feeding my sheep.

Acts 13:2-3

And, as they were publicly ministering unto the Lord and fasting, the Holy Spirit said - Separate forthwith unto me, Barnabas and Saul, unto the work whereunto I have called them.

Acts 14:23

Moreover, appointing unto them by vote, in each assembly, elders, praying with fastings, they commended them unto the Lord on whom they had believed.

Romans 8:27

And, he that searcheth the hearts, knoweth what is preferred by the Spirit - that, according to God, he maketh intercession in behalf of saints;

Hebrews 4:13

And there is, no created thing, can be secreted before him, but, all things, are naked and exposed to his eyes: - as to whom is, our discourse.

Treasury of Scripture Knowledge

Summary

And they prayed, and said, Thou, Lord, which knowest the hearts of all men, shew whether of these two thou hast chosen,

Bible References

They

Acts 13:2
And, as they were publicly ministering unto the Lord and fasting, the Holy Spirit said - Separate forthwith unto me, Barnabas and Saul, unto the work whereunto I have called them.
Proverbs 3:5
Trust thou in Yahweh, with all thy heart, and, unto thine own understanding, do not lean:
Luke 6:12
And it came to pass, in these days, that he went forth into the mountain to pray, and was spending the night in the prayer-house of God.

Thou, lord

Acts 15:8
And, the heart-observing God, bare witness, - unto them, giving the Holy Spirit, just as, even unto us;
Numbers 27:16
Let Yahweh, God of the spirits of all flesh, appoint a man over the assembly;
1 Samuel 16:7
But Yahweh said unto Samuel - Do not regard his countenance, or the height of his stature, for I have rejected him, - for it is not what man looketh to but what God looketh to. For, man, looketh to the outward appearance, but, Yahweh, looketh to the heart.
1 Kings 8:39
then wilt, thou thyself, hear in the heavens, in the settled place of thine abode, and forgive and act, and give unto every man according to all his ways, whose heart thou wilt know, - for, thou thyself alone, knowest the heart of all the sons of men;
1 Chronicles 28:9
Thou, therefore, Solomon my son, Know thou the God of thy father, and serve him with a perfect heart and with a willing soul, for, all hearts, doth Yahweh search, and, every devised purpose, doth he understand, - If thou seek him, He will be found of thee, but, if thou forsake him, He will cast thee off for ever.
1 Chronicles 29:17
But I know, O my God, that, thou, art proving the heart, and, with uprightness, wilt thou be pleased, - I, in the uprightness of my heart, have willingly offered all these things, now, therefore, thy people who are found here, have I seen with joy, offering willingly unto thee.
Psalm 7:9
Let the wrong of the lawless, I pray thee, come to an end, and establish thou him that is righteous, - for, a trier of hearts and reins, is God the righteous one.
Psalm 44:21
Would not, God, have searched into this, Seeing that, he, knoweth the secrets of the heart?
Proverbs 15:11
Hades and destruction, are before Yahweh, how much more then, the hearts of the sons of men.
Jeremiah 11:20
But, O Yahweh of hosts Who judgest righteously, Who triest affections and intellect, - Let me see thine avenging upon them, For unto thee, have revealed my cause.
Jeremiah 17:10
I - Yahweh, Searching the heart, Testing the affections; And giving to every man According to his way, According to the fruit of his doings.
Jeremiah 20:12
But O Yahweh of hosts - Testing the righteous Beholding the affections and the heart, - Let me see thine avenging upon them, For unto thee, have I laid bare my cause.
John 2:24
Jesus himself, however, was not trusting himself unto them, by reason of his understanding them all,
John 21:17
He saith unto him, the third time - Simon, son of John! art thou fond of me? Peter was grieved, that he said unto him, the third time, Art thou fond of me? and he said unto him - Lord! all things, thou, knowest: thou perceivest that I am fond of thee. Jesus saith unto him - Be feeding my sheep.
Hebrews 4:13
And there is, no created thing, can be secreted before him, but, all things, are naked and exposed to his eyes: - as to whom is, our discourse.
Revelation 2:23
and, her children, will I slay with death; - and all the assemblies shall get to know, that, I, am he that searcheth reins and hearts, and will give unto you, each one, according to your works.