How do you think of today's Christian miracles? Are they not the works of the Spirit? I think the Holy Spirit still works in God's church.
On your inquiry on the issue of today's Christian miracle, you are right partially.
But you have to remind that all divine miracles are to give people the faith in Jesus Christ (John 2:11). In other words, the Lord allows miracles in order to let people have faith in Jesus Christ.
We can find many miracles that had been performed by the Apostles and the disciples of Jesus, especially in the Book of Acts. Through the miracles, they could testify their faith in the truth that Jesus is God, He took all our sins through His baptism, and He died to compensate all our sins by shedding Hid blood on the Cross.
But, after completing the written Word of God. God Father wants
us to obey His Word rather than seeking for the miraculous evidences.
This is why the Bible states, "Love never fails. But whether
there are prophecies, they will fail; whether there are tongues,
they will cease; whether there is knowledge, it will vanish away.
For we know in part and we prophesy in part. But when that which
is perfect has come, then that which is in part will be done away"
(1 Corinthians 13:8-10).
Jesus said to one of His disciples, "Thomas, because you have
seen Me, you have believed. Blessed are those who have not seen
and yet have believed" (John 20:29) .
True faith is not based on the miracles you have experienced, but on the Word of God you have already received from the Lord.