Have You Changed The Gospel Of Christ?

Christians quite rightly tell non-Christians that they can not be saved by works but that only Jesus can save them and that they must be born again. Why then do so many then change and corrupt the gospel of Christ as soon as a person is saved, by telling him/her that he/she must now walk in obedience to God in order to finally get to heaven????

Heresy abounds and must be confronted with the truth. Pastors/church leaders are in an especially accountable position before God if they insist on corrupting the gospel of Christ into a gospel of works! This is not a new problem and it's high time it was repented of and renounced by all who propagate it.

1 O foolish Galatians, who hath bewitched you, that ye should not obey the truth, before whose eyes Jesus Christ hath been evidently set forth, crucified among you?
2 This only would I learn of you, Received ye the Spirit by the works of the law, or by the hearing of faith?
3 Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?
Galatians 3:1-3

I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.
Galatians 2:21

6 I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:  
7 Which is not another; but there be some that trouble you, and would pervert the gospel of Christ. 
8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed. 
9 As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.
Galatians 1: 6-9