I will give you all a short but precise reasons while miracles and spiritual healings are not the mark of a true church of God.

God Almighty made it known that I. This last days, Miracles deliverances etc will cease due to the fact that many false prophets will use it as a means to lead many people to destruction.
The following scriptures is what I will use to drive down my points.
There is nothing hidden that shall not be revealed. So all those using voodoos and devilish powers to perform fake miracles, your days are numbered. Repent now.

Let's begin
1. Miracles have ceased.

1 Corinthians 13:8 Charity never faileth: but whether there be prophecies, they shall fail; whether there be tongues, they shall cease; whether there be knowledge, it shall vanish away. 13:9 For we know in part, and we prophesy in part. 13:10 But when that which is perfect is come, then that which is in part shall be done away.

2.The Deceit of the Devil

2 Thessalonians 2:8 And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming: 2:9 Even him, whose coming is after the working of Satan with all power and signs and lying wonders, 2:10 And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.

3.False prophets Among Us
Revelation 16:13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet. 16:14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.

4. Idolatry
Idolatry is a spiritual fornication is tantamount to destruction if one doesn't repent.
Many people today now to images of Mary and Jesus Christ. This is idolatry which God warned us about in
Exodus 20:4 Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth: Exodus 20:5 Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
Those who say Mary pray for us or start trembling when they see images of Mary in tbe skiy or that of angels should stop doing so. These are the acts of Satan the devil to keep many In perpetual ignorance.
Mary is not Immaculate, therefore we should not give the glory of Jesus Christ to her.

The Mediator
Jesus Christ is the mediator between God and man. All should chennel their wants , needs, prayers and supplication through Him.
1 Timothy 2:5 For there is one God, and one mediator between God and men, the man Christ Jesus; 2:6 Who gave himself a ransom for all, to be testified in due time.

In conclusion Jesus Christ warned us in

Matthew 24:24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. 24:27 For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be.

Let us study the scriptures everyday so that we'll be more acquainted with the devices of Satan the devil.
1 Timothy 3:26, 17
2 Timothy 2:15.
Good bless us all.