"Let no one deceive you by any means: for that day shall not come except there come a falling away first and that man of sin be revealed, the son of perdition, opposing and exalting himself against all that is called God, or divinity, so that he as God sits in the temple of God, making himself appear to be God. Remember ye not, that when I was yet with you, I told you these things? And ye know what impedes this now, that he might be revealed in his time. For the mystery of iniquity is already working, except that he who dominates now will dominate until he is taken out of the way. And then shall that Wicked one be revealed, whom the Lord shall consume with the Spirit of his mouth and remove with the clarity of his coming: that wicked one, who shall come by the working of Satan with great power and signs and lying miracles, and with all deception of iniquity working in those that perish because they did not receive the charity of the truth, to be saved. Therefore, for this cause, God shall send the operation of error in them, that they should believe the lie; that they all might be condemned who did not believe the truth, but consented to the iniquity." - 2 Timothy 2:3-12
We have those who run after miracle upon miracle and then we have those who run after the washing of the Word. Our aim as children of the most High should always be to serve Him out of a pure heart.
We have no guarantee that miracles makes the person a disciple of Christ. The Bible speaks about it. The Bible warns us again and again to focus on Christ and serve Him only. We are however warned also that people will be misled by miracles in the last days. There are miracles that's from God, but do you follow miracles or Jesus Christ the LORD.