Galatians 1:8-9; Galatians 3:3; Titus 3:5

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.

3 Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?

5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;