My spiritual identity is centered in Jesus (Yeshua), not in Sabbath-keeping. However, this does not lessen the importance of keeping the Sabbath, any more than it lessens the importance of keeping any of the other nine of the Ten Commandments. Keeping the seventh-day Sabbath is very important to me and to others who, like me, are active in a movement that is usually called the Messianic Movement. Some people call this movement by other names - the Jewish Roots Movement, the Hebrew Roots Movement, the Torah Movement, the Messianic Israel Movement, and perhaps other names I have not heard. But the term most commonly used is the Messianic Movement.
The modern Messianic Movement grew out of the Messianic Jewish Movement, which grew out of the Hebrew Christian Movement of the 1800s.