Have you ever considered this? [Spirituality & Religion]

To those who repeatedly try to convince me that the Sabbath of the fourth commandment no longer applies to those of us who reside in New Testament times, have you ever considered this? The Sabbath was established at the end of Creation week, before the entrance of sin, was made for all mankind, not just the Jews, and is repeatedly called in the Bible the Sabbath of the Lord thy God, not the Sabbath of the Jews. Also, Adam and Eve, our first parents, spent their entire first full day resting and communing with God on His Holy Sabbath Day.