Heb 4 : 9 – There Remain the Sabbath Rest for His Saints

Paul State a Quotation in Romans 14:5 One person considers one day more sacred than another; another considers every day alike. Each of them should be fully convinced in their own mind.
So Let us Convinced Our Mind
Which Day Was Blessed and Sanctified from Beginning ?
Gen 2 1- 2. It is 7th Day of the Week. Gregorian Calendar it is Saturday. On this Day Abraham the Father of Faith Rested. Gen 26 :5
Israelites Kept the 7th Day of the Week as Holy Worship Day. Exo 20 8- 11
Even Gentiles Kept the 7th Day of the Week as a Worship Day. Acts 13: 44 – 48. 16: 13.
Yahshua Reminds the Sabbath Day at the Time of Flight ( Tribulations) Matt 24: 20
New Heaven and in New Earth the SABBATH Remains ISA 66 : 22 – 24
Do not Say that the Sabbath Was Nailed on the Cross but a SIGN of God with His People like You & Me EZE 20 : 12, 20

Remember the Sabbath Day to Keep it Holy Exo 20: 8- Shalom