Calvin, Luther, the Reformers and the puritans "SHARED their faith" and still do today by written testimony. Praise be to God.
But they are rejected by some as not being "biblical" - especially some local Baptists around here.
As for sharing abilities! Why did God teach:- 1Cor 12:28 And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then gifts of healings, helps, governments, diversities of tongues. 29 Are all apostles? are all prophets? are all teachers? are all workers of miracles?
Eph 4:11 And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers; 12 For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: 13 Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:
If God commanded and ordained these disciples and worked in and through them specifically - Then obviously THAT IS THE GROUP GOD WORKS IN TO quote "SHARE" FAITH.
He is a God of order not chaos in revealing the truth. Many are guilty of arrogance enough to presume they have this expertise and Satan uses this sin well in churches.