Now the wall of the city had twelve foundations, and on them were the names of the twelve apostles of the Lamb. (Rev 21:14 NKJ)

For I delivered to you first of all that which I also received: that Christ died for our sins according to the Scriptures, and that He was buried, and that He rose again the third day according to the Scriptures, and that He was seen by Cephas, then by the twelve. After that, He was seen by over five hundred brethren at once, of whom the greater part remain to the present, but some have fallen asleep. After that, He was seen by James, then by all the apostles. Then last of all, He was seen by me also, as by one born out of due time. For I am the least of the apostles, who am not worthy to be called an apostle because I persecuted the church of God.

The Apostles of the Lamb were the original disciples, the twelve that were the closest to Christ.  They were called and commissioned by the Lord to spread the word far and wide. Matthew, Mark, John, wrote their version of the gospel. John, James, Peter, and Paul all wrote epistles to their congregation teaching, correcting and exhorting the church.

For the benefit of this study, we will refer to them a Apostles with a capital ‘A.’ Though their anointing will never be seen again, we know that Christ, “gave some to be apostles, some prophets, some evangelists, and some pastors and teachers, for the equipping of the saints for the work of ministry, for the edifying of the body of Christ. (Eph 4:11-12 NKJ) n