Of course it's relevant. Jesus himself quotes last 5 Commandments: Mt 19:16-19
"And behold, one came to Him and said, "Teacher, what good thing shall I do that I may obtain eternal life?" And He said to him, "Why are you asking Me about what is good? There is only One who is good; but if you wish to enter into life, keep the commandments." He *said to Him, "Which ones?" And Jesus said, "You shall not commit murder; You shall not commit adultery; You shall not steal; You shall not bear false witness; Honor your father and mother; and You shall love your neighbor as yourself."