THE purpose of child of God.

Mark 3:13-15 And he goeth up into a mountain, and calleth unto him whom he would: and they came unto him.
And he ordained twelve, that they should be with him, and that he might send them forth to preach,
And to have power to heal sicknesses, and to cast out devils.
God choose whosoever he wills and he called twelve of them disciples and he send there are certain reason why he had chosen these twelve and the reason are:

1:so that he could be with him, that is he wanted to have fellowship.

2:so that he could send them forth and preach the gospel, so that they would be his ambassadors, his forerunners.

3:so that they might have power to heal the sickness and diseases and to cast out demon which are part of the work of Jesus Christ himself came to do.
THE FELLOWSHIP BETWEEN GOD AND MAN
One of the main reason for creation of man is God's desire for fellowship in. Genesis 1:26 And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.
God said let make man in our image in our likeness, the kind of people who will be like us, so that we can fellowship with them. The Bible tells us, in the garden of eden, God was always coming down in the cool of the day to fellowship with Adam and eve. Genesis 3:8-9 And they heard the voice of the LORD God walking in the garden in the cool of the day: and Adam and his wife hid themselves from the presence of the LORD God amongst the trees of the garden.
And the LORD God called unto Adam, and said unto him, Where art thou?
Before sin came, God has been coming down to fellowship with them in the cool of the day. As soon as they heard the voice of the Lord in the garden, they would rush to go and meet him so that their fellowship could begin. On this occasion, they had already sinned, instead of rushing to go meet God, they ran away from him. So God began to ask, "Adam, where are you? We want to fellowship. Why are you hiding from me?
God created us in his image so that he can have fellowship with us. Inside of every man is something that longs for fellowship. Nobody really want to be alone if he is not sick, if he is not mentally deranged. Everybody want fellowship. In fact, it is because of this that God said.Genesis 2:18 And the LORD God said, It is not good that the man should be alone; I will make him an help meet for him.
God know the value of fellowship. Nobody is really very comfortable alone.

INGREDIENTS OF FELLOWSHIP
When two friends meets, when they are sharing fellowship, certain things happen.

1:CONVERSATION.
There will be conversation, kind of dialogue.

2:PHYSICAL CONTACT.
Their will be physical contact like shaking of hands or hugging each other or if they are that close, for example husband and wife, there will be kissing.

3:SHARING OF MEALS.
Their will be sharing of meals because when your friends comes to visit you, you will want to present something to him. If he meet you while you are eating, if you are a true friends, you will just tell him to take his seat. God wants to do the same to use revelations 3:20 Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
When two friends meet In fellowship, they share meals.

4:EXCHANGE OF GIFTS.
Now with real friends, are fellowship ping, there is always an exchange of gifts. When. You come to visit your friends, if you come from a very good home, you will not even come empty handed. You will bring something for him no matter how little it is. It is not the size of gift that matter. When you are going, your friends also will not let you go empty handed. There is an exchange of gifts.

5:STRENGTHENING OF FELLOWSHIP.
There will be strengthening of fellowship, inIsaiah 40:31 But they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.
He will not allow them to faint. In the original, Bible says they that wait upon the Lord shall exchange their strength.

In conclusion
God want us to fellowship with him, in other words, they will give their weakness to God and God will give them his strength. Their will be conversation, physical contact, sharing of meals and exchange of gifts. All these gose on to strengthen the fellowship, or the strengthening of the fellowship. God bless steemchurch.