You seem to be assuming things to a certain degree at least, on your own understanding. I've heard of many miracles in peoples lives. GOD does things on His own timing according to His own will. If He chose to do many miracles through Jesus Christ His Son at that time of Christ's ministry, what's our reasoning to assume GOD will do the same 2,000 years later? Where do you come off assuming that the supernatural miracles performed by Christ had to be similar kind of miracles today? If one does get saved, it is indeed a miracle. Is that not good enough that people need a show with fireworks from Heaven?
If one got saved or if 1,000 got saved, how is it less of a miracle in and of itself? Its still a miracle either way, no more and no less. You cannot measure GOD's miracles based on quantity.
American Heritage Dictionary
term: miracle
An event that appears inexplicable by the laws of nature and so is held to be supernatural in origin or an act of God:
“Miracles are spontaneous, they cannot be summoned, but come of themselves” (Katherine Anne Porter).
As you can see, a person getting saved is by GOD's grace and the works of the Holy Spirit convicting that newly saved person.
I can tell that you have not read much about what GOD does in Christian ministries overseas. Miracles that will blow your mind. I suggest signing up for BGEA newsletter and especially sign up for GFA Outreach newsletter too called Send. They're both free and amazing.
The only way your going to witness or hear of miracles is by seeking them in the right places. Christian charities is a huge place, probably bigger than your usual churches.
Mathew Henry's Commentary
I. Great power on earth (v. 12):
He that believeth on me (as I know you do),
the works that I do shall he do also. This does not weaken the argument Christ had taken from his works, to prove himself one with the Father (that others should do as
great works), but rather strengthens it; for the miracles which the apostles wrought were
wrought in his name, and
by faith in him; and this magnifies his power more than any thing, that he not only wrought miracles himself, but gave power to others to do so too.
1. Two things he assures them of:—
(1.) That they should be enabled to do such works as he had done, and that they should have a more ample power for the doing of them than they had had when he first sent them forth,
Mt. 10:8. Did Christ
heal the sick, cleanse the leper, raise the dead? So should they. Did he convince and convert sinners, and draw multitudes to him? So should they. Though he should depart, the work should not cease, nor fall to the ground, but should be carried on as vigorously and successfully as ever; and it is still in the doing.
(2.) That they should do
greater works than these.
[1.] In the kingdom of nature they should work greater miracles. No miracle is little, but some to our apprehension seem greater than others. Christ had healed with the hem of his garment, but Peter with his shadow (
Acts 5:15), Paul by the handkerchief that had touched him,
Acts 19:12. Christ wrought miracles for two or three years in one country, but his followers wrought miracles in his name for many ages in divers countries.
You shall do greater works, if there be occasion, for the glory of God.
The prayer of faith, if at any time it had been necessary, would have
removed mountains.
[2.] In the kingdom of grace. They should obtain greater victories by the gospel than had been obtained while Christ was upon earth. The truth is, the captivating of so great a part of the world to Christ, under such outward disadvantages, was the miracle of all. I think this refers especially to
the gift of tongues; this was the immediate effect of the
pouring out of the Spirit, which was a constant miracle upon the mind, in which words are framed, and which was made to serve so glorious an intention as that of spreading the gospel to all nations
in their own language. This was a greater
sign to them that believed not (
1 Co. 14:22), and more powerful for their conviction, than any other miracle whatever.
2. The reason Christ gives for this is,
Because I go unto my Father, (1.)
"Because I go, it will be requisite that you should have such a power, lest the work suffer damage by my absence.’’ (2.)
"Because I go to the Father, I shall be in a capacity to furnish you with such a power, for
I go to the Father, to send the Comforter, from whom
you shall receive power,’’ Acts 1:8. The wonderful works which they did in Christ’s name were part of the glories of his exalted state,
when he ascended on high, Eph. 4:8.