I believe we are to follow God's instruction manual (i.e. the Holy Bible), but we are New Covenant believers and not Old Covenant believers.
While God's moral laws are still in effect in the New Covenant (like: Do not murder, do not steal, do not covet, etc.), I do not agree that the 4th commandment (a ceremonial law) was carried over into the New Testament. In fact, I did a study on the New Testament commands from Matthew to Revelation. There is no list of sins with the breaking of the Sabbath included. There is no explicit or non-explict commands for the Saturday Sabbath. Only inferences of men keeping the Sabbath is equated with God approving that the Sabbath command is still in effect (Which is not the same as an actual command). In addition,
Colossians 2 says,
“Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;” (Colossians 2:14).
We learn in the OT that the weekly Sabbath is inferred as being an ordinance in
Isaiah 58.
“Yet they seek me daily, and delight to know my ways, as a nation that did righteousness, and forsook not the ordinance of their God...” (Isaiah 58:2).
“If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight,...” (Isaiah 58:13).
How was the weekly sabbath (Which is an ordinance) against us? Well, the OT talks about how a man was killed for collecting sticks on the weekly sabbath.
Colossians 2:16 says,
“Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:” (Colossians 2:16).
This verse is saying we are not to let others judge us in regards to whether or not we keep Sabbaths days. This means that the Sabbath is no longer binding because the Saturday Sabbath would be included in the list of the different kinds of Sabbaths (like the yearly Sabbath, etc.). Thus, the 4th commandment in Exodus 20 in the Old Covenant is no longer binding. We are under a New Covenant with New Commands. Hebrews 7:12 says the Law has changed.
Side Note:
In other words, from my plain reading of Colossians 2, there are two things that make me easily conclude that the Saturday Sabbath command (not the calendar day) is no more (Unless of course you are biased towards wanting to keep the Sabbath).
Point #1. Colossians 2:14 says that the ORDINANCES have been blotted out. Isaiah 58 says the Saturday Sabbath is an ORDINANCE (See again Isaiah 58:2, and Isaiah 58:13). So this means the Saturday Sabbath command (
not the calendar day being the Sabbath) is blotted out.
Point #2. Colossians 2:16 refers to how we are not to let others judge us according to whether or not we keep the Sabbaths. The Saturday Sabbath would naturally be included in the list of Sabbaths (like the yearly Sabbaths, etc.). So this means that the Saturday Sabbath command (
not the existence of the calendar day being the Sabbath) has ended.