Brother P. Maynard
Family of God in Eph. 3:14-15
Paul said for this cause I bow my knee's unto the Father of our Lord Jesus Christ.   Of whom the whole family in heaven and earth is named.

As you can see that the whole family of God on this earth is to carry Christ's name because we the Christians are his church.
We are of his body.
Eph. 1:22-23
We are the church of the living God.
l Tim. 3:15

Listen to Paul word's here in
Eph. 3:21
Unto him be glory in the church
By Jesus Christ through all Ages,  world with out end. Amen
Eph.1:23, Eph. 4:1(There is one body).

In Acts 4:12
As you can see there is no salvation in some man's name of this earth. 
ONLY CHRISTII Tim. 2:10 Salavation in Christ.
There is no other name on this earth that we can be saved by.  Only by the name of Christ can we be saved.
They pierced his side and blood and water came.
John 19;34
Are you in Christ?
Rom.6:3
Have you been Basptised into his death?
John 19:34
Have you been buried with Jesus Christ in that water grave?
Rom.6:4
So that you could walk in the newness of life in Christ.
IICor. 5:17
If you have not been planted in the likeness of his death burial, you cannot be resurrected with him (Jesus Christ).
You could not have destroyed the old body of sin.
Rom. 6:6

IF YOU HAVE NOT WENT THROUGH THE LIKENESS OF HIS DEATH, HIS BURIAL, AND HIS RESURRECTION. STOP AN THINK ON THIS IF YOU WANT TO GO TO HEAVEN.

This is after his(Jesus) death, burial and his resurrection before he went back to heaven and sat down at the right hand of God as a mediator for everyone that will obey him.  I Tim.2:5, Heb.5:9

Mark 16:15-16  And this is a commandment he(Christ) gave his apostles.  Jesus said unto them go ye unto all the world and preach the gospel to ever creature and Jesus also said he that believeth and is baptized shall be saved but them that beliveth
NOT shall be damed.  Read  II Thes. 1:7-9

So why shouldn't we the family of God carry the name of Christ,
after all we are his Bride, we are married to Christ and he is the husband of the Bride. 
Rom. 7:4

Paul wrote in Eph. 5:23, For the husband is the head of the wife ( his bride).   Even as Christ is the head of the Church(Christ's bride).

So maybe you can see why we Christians carry the name of Christ,
because He Christ is our Husband and we are his Bride. A bride should honor her husband and carry his
NAME.  Rom 4:7
AS YOU CAN SEE WE MUST CARRY THE
                  NAME OF CHRIST
church of Christ
blockhouse bottom church of christ