That is not true. Here is my rebuttal:
And Jesus said to him, “Assuredly, I say to you, today you will be with Me in Paradise.” ~Luke 23:43. See also:
Romans 4:16 -
Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham's offspring—not only to those who are of the law but also to those who are of the faith of Abraham. He is the father of us all.
2 Corinthians 1:22 -
set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come.
2 Corinthians 5:5 -
Now it is God who has made us for this very purpose and has given us the Spirit as a deposit, guaranteeing what is to come.
Ephesians 1:14 -
who is a deposit guaranteeing our inheritance until the redemption of those who are God's possession—to the praise of his glory.
Hebrews 7:22 -
Because of this oath, Jesus has become the guarantee of a better covenant.
The Noachide Laws - The Encyclopedia of Judaism
(1) Civil justice [the duty to establish a legal system];
(2) Prohibition of blasphemy [which includes the bearing of false witness];
(3) The abandonment of idolatry;
(4) The prohibition of incest [including adultery and other sexual offenses];
(5) The prohibition of murder;
(6) Also that of theft;
(7) The law against eating flesh [a limb] cut from a living animal [ie., cruelty in any shape or form] (T.B. Sanh. 56A)
The Talmud also states the penalty for disobedience:
"One additional element of greater severity is that violation of any one of the seven laws subjects the Noahide to capital punishment by decapitation. (Sanh. 57A)"
_________________________________________________________
As these are the Laws you claim to live by, and as I have demonstrated that you have blasphemed twice on this thread - first by saying no individual has assurance of salvation in Jesus Christ and I most definitely do, and second by saying no Fundamentalist Protestant cares a whit for Mary the mother of Jesus and this one does - I wonder that your Noachide brethren let you keep your head...