Shimei said:
Christians still sin, but Christians are not under the law. Christians are no longer sinners, but saints. Even though Christians still sin, they do not lose their salvation.
I'd like to look at the verses you chose, and set your statement aside for a moment.
Romans 6
14 For sin shall not have dominion over you, for you are not under law but under grace.
If you are servant of something, it has dominion over you. Jesus stated that whoever sins (
whoever) is a servant of sin. He gave no exceptions...
John 8:34 Jesus answered them, Verily, verily, I say unto you,
Whosoever committeth sin is the servant of sin.
So the
only way that sin could not have dominion over you is if you stopped sinning.
22 But now having been set free from sin, and having become slaves of God, you have your fruit to holiness, and the end, everlasting life. 23 For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.
We have been set free from sin, which is what Jesus was talking about...
33 They answered him, We be Abraham’s seed, and were never in bondage to any man: how sayest thou, Ye shall be made free?
34 Jesus answered them, Verily, verily, I say unto you, Whosoever committeth sin is the servant of sin.
35 And the servant abideth not in the house for ever: but the Son abideth ever.
36 If the Son therefore shall make you free, ye shall be free indeed.
We have becomes slaves to God, and a slave to God (saved) cannot continue to murder, steal, and fornicate.
Shimei said:
Should we continue to sin because we can?
We can't continue to sin. These last verses prove that.
Romans 6
15 What then? Shall we sin because we are not under law but under grace? Certainly not! 16 Do you not know that to whom you present yourselves slaves to obey, you are that one’s slaves whom you obey, whether of sin leading to death, or of obedience leading to righteousness?
If we sin, then we are slaves to sin. What Paul is saying cannot be interpretated any other way, in my opinion.
Now, you said "even though Christians still sin, they do not lose their salvation." But we can see from the verses you offered that of a person sins they are a slave to sin, and Christians are slaves to righteousness.