It's not an old interpretation of scripture, it's the Law of God. You think man can change what God has commanded?
Shemot 20:8
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ׃
Remember Shabbat, to keep it holy.
1 John 3:4 Πᾶς ὁ ποιῶν τὴν ἁμαρτίαν καὶ τὴν ἀνομίαν ποιεῖ καὶ ἡ ἁμαρτία ἐστὶν ἡ ἀνομία...