1 John 1:3

that which we have seen and heard declare we unto you also, that ye also may have fellowship with us: yea, and our fellowship is with the Father, and with his Son Jesus Christ:

1 Corinthians 1:9

God is faithful, through whom ye were called into the fellowship of his Son Jesus Christ our Lord.

1 John 1:1

That which was from the beginning, that which we have heard, that which we have seen with our eyes, that which we beheld, and our hands handled, concerning the Word of life

Philippians 2:1

If there is therefore any exhortation in Christ, if any consolation of love, if any fellowship of the Spirit, if any tender mercies and compassions,

John 17:3

And this is life eternal, that they should know thee the only true God, and him whom thou didst send, even Jesus Christ.

John 17:21

that they may all be one; even as thou, Father, art in me, and I in thee, that they also may be in us: that the world may believe that thou didst send me.

Acts 4:20

for we cannot but speak the things which we saw and heard.

2 Corinthians 13:14

The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Spirit, be with you all.

Philippians 3:10

that I may know him, and the power of his resurrection, and the fellowship of his sufferings, becoming conformed unto his death;

1 John 1:7

but if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth us from all sin.

Psalm 2:7

I will tell of the decree: Jehovah said unto me, Thou art my son; This day have I begotten thee.

Psalm 22:22

I will declare thy name unto my brethren: In the midst of the assembly will I praise thee.

Isaiah 66:19

And I will set a sign among them, and I will send such as escape of them unto the nations, to Tarshish, Pul, and Lud, that draw the bow, to Tubal and Javan, to the isles afar off, that have not heard my fame, neither have seen my glory; and they shall declare my glory among the nations.

John 14:20-23

In that day ye shall know that I am in my Father, and ye in me, and I in you.

John 17:11

And I am no more in the world, and these are in the world, and I come to thee. Holy Father, keep them in thy name which thou hast given me, that they may be one, even as we are .

John 17:25

O righteous Father, the world knew thee not, but I knew thee; and these knew that thou didst send me;

Acts 2:42

And they continued stedfastly in the apostles teaching and fellowship, in the breaking of bread and the prayers.

Acts 13:32

And we bring you good tidings of the promise made unto the fathers,

Acts 13:41

Behold, ye despisers, and wonder, and perish; For I work a work in your days, A work which ye shall in no wise believe, if one declare it unto you.

Acts 20:27

For I shrank not from declaring unto you the whole counsel of God.

Romans 15:27

Yea, it hath been their good pleasure; and their debtors they are. For if the Gentiles have been made partakers of their spiritual things, they owe it to them also to minister unto them in carnal things.

1 Corinthians 1:30

But of him are ye in Christ Jesus, who was made unto us wisdom from God, and righteousness and sanctification, and redemption:

1 Corinthians 15:1

Now I make known unto you brethren, the gospel which I preached unto you, which also ye received, wherein also ye stand,

Ephesians 3:6

to wit , that the Gentiles are fellow-heirs, and fellow-members of the body, and fellow-partakers of the promise in Christ Jesus through the gospel,

Philippians 1:7

even as it is right for me to be thus minded on behalf of you all, because I have you in my heart, inasmuch as, both in my bonds and in the defence and confirmation of the gospel, ye all are partakers with me of grace.

Colossians 1:13

who delivered us out of the power of darkness, and translated us into the kingdom of the Son of his love;

1 Thessalonians 1:10

and to wait for his Son from heaven, whom he raised from the dead, even Jesus, who delivereth us from the wrath to come.

1 Timothy 6:2

And they that have believing masters, let them not despise them, because they are brethren; but let them serve them the rather, because they that partake of the benefit are believing and beloved. These things teach and exhort.

Hebrews 2:12

saying, I will declare thy name unto my brethren, In the midst of the congregation will I sing thy praise.

Hebrews 3:1

Wherefore, holy brethren, partakers of a heavenly calling, consider the Apostle and High Priest of our confession, even Jesus;

Hebrews 3:14

for we are become partakers of Christ, if we hold fast the beginning of our confidence firm unto the end:

1 Peter 5:1

The elders among you I exhort, who am a fellow-elder, and a witness of the sufferings of Christ, who am also a partaker of the glory that shall be revealed:

1 John 1:5

And this is the message which we have heard from him and announce unto you, that God is light, and in him is no darkness at all.

1 John 2:23-24

Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also.

1 John 5:10-11

He that believeth on the Son of God hath the witness in him: he that believeth not God hath made him a liar; because he hath not believed in the witness that God hath borne concerning his Son.

Treasury of Scripture Knowledge

Summary

That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.

Bible References

Declare

1 John 1:5
And this is the message which we have heard from him and announce unto you, that God is light, and in him is no darkness at all.
Psalm 2:7
I will tell of the decree: Jehovah said unto me, Thou art my son; This day have I begotten thee.
Psalm 22:22
I will declare thy name unto my brethren: In the midst of the assembly will I praise thee.
Isaiah 66:19
And I will set a sign among them, and I will send such as escape of them unto the nations, to Tarshish, Pul, and Lud, that draw the bow, to Tubal and Javan, to the isles afar off, that have not heard my fame, neither have seen my glory; and they shall declare my glory among the nations.
John 17:25
O righteous Father, the world knew thee not, but I knew thee; and these knew that thou didst send me;
Acts 13:32
And we bring you good tidings of the promise made unto the fathers,
Acts 20:27
For I shrank not from declaring unto you the whole counsel of God.
1 Corinthians 15:1
Now I make known unto you brethren, the gospel which I preached unto you, which also ye received, wherein also ye stand,
Hebrews 2:12
saying, I will declare thy name unto my brethren, In the midst of the congregation will I sing thy praise.

Our fellowship

1 John 1:7
but if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth us from all sin.
1 John 2:23
Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also.
John 14:20
In that day ye shall know that I am in my Father, and ye in me, and I in you.
John 17:3
And this is life eternal, that they should know thee the only true God, and him whom thou didst send, even Jesus Christ.
1 Corinthians 1:9
God is faithful, through whom ye were called into the fellowship of his Son Jesus Christ our Lord.
2 Corinthians 13:14
The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Spirit, be with you all.
Philippians 2:1
If there is therefore any exhortation in Christ, if any consolation of love, if any fellowship of the Spirit, if any tender mercies and compassions,
Philippians 3:10
that I may know him, and the power of his resurrection, and the fellowship of his sufferings, becoming conformed unto his death;
Hebrews 3:14
for we are become partakers of Christ, if we hold fast the beginning of our confidence firm unto the end:

With his

1 John 5:10
He that believeth on the Son of God hath the witness in him: he that believeth not God hath made him a liar; because he hath not believed in the witness that God hath borne concerning his Son.
Colossians 1:13
who delivered us out of the power of darkness, and translated us into the kingdom of the Son of his love;
1 Thessalonians 1:10
and to wait for his Son from heaven, whom he raised from the dead, even Jesus, who delivereth us from the wrath to come.

General references

Numbers 10:32
And it shall be, if thou go with us, yea, it shall be, that what good soever Jehovah shall do unto us, the same will we do unto thee.
Mark 4:22
For there is nothing hid, save that it should be manifested; neither was anything made secret, but that it should come to light.
Luke 24:48
Ye are witnesses of these things.
John 20:30
Many other signs therefore did Jesus in the presence of the disciples, which are not written in this book:
Philippians 1:5
for your fellowship in furtherance of the gospel from the first day until now;

American Standard Version Public Domain