Jesus clearly says: Mt 7:21-23
21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
22 Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
KJV
There are those who think they are saved and are not.
There are indeed no tares in the Church but there are tares in the churches. The churches are local assemblies of believers; but among them are unsaved seekers and those who believe themselves to be saved and are not. it is those who think themselves and are not who hinder the work and the growth of the church.
The Church is all true believers in all times and places.
In 1 Corinthians 5th chapter, Paul instructed the church about excommunicating an unrepentant "brother". They were not to eat with saved believers living in sin.
Now imagine what God will do at the pre trib rapture event. Do you really think every Christian is going to be found abiding in Him when the Bridegroom comes? When was the last time any church excommunicate an unrepentant believer?
If the church does not do it because of not wanting to lose members; and just have their fingers crossed that the unrepentant believer living in sin will get the message from the pulpit one day and finally repent, then guess Who will do the excommunicating at the pre trib rapture event?
It does not mean they are not saved. Look at what Paul said excommunication does.
1 Corinthians 5:[SUP]
4 [/SUP]In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ, [SUP]
5[/SUP]
To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.
Will not Satan wage war on the saints during the great tribulation?
Now read the condition for fellowship as it must be the same for when sitting at the Marriage Supper table.
1 Corinthians 5:[SUP]
9 [/SUP]I wrote unto you in an epistle not to company with fornicators: [SUP]
10 [/SUP]Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world. [SUP]
11 [/SUP]But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolator, or a railer, or a drunkard, or an extortioner;
with such an one no not to eat.
1 John 3:[SUP]
8 [/SUP]He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
So there are tares in the church that are part of His kingdom which is why they were being taken out of His Kingdom when the angels takes the wheat from the field to the barn, leaving the tares behind in the field and thus in the world to face the coming fire on the earth and the subsequent great tribulation as of a result of that fire..
The call to every believer having His seal is to depart from iniquity now.. not tomorrow... now for the Bridegroom could come at any moment ( not to mention that death can strike at any moment )