Hi @Spirit Realm Investigator, I am new here as well. 

As to your question? I believe the bible teaches YES and absolutely! JESUS is expecting his disciples to be continuing to keep the Sabbath after His death and resurrection and that is precisely why it was written. 

After all we are talking about God’s 4th commandment here which is one of God’s 10 commandments that gives us the knowledge of what sin is when broken according to the new covenant scriptures in Romans 3:20. The purpose of God’s law (10 commandments) according to God’s Word in the new covenant is to give us the knowledge of good and evil; sin and righteousness *Romans 7:7; 1 John 3:4; James 2:10-11 and to lead us to Christ that we might be forgiven through faith *Galatians 3:22-25; Matthew 9:12-13. 

If we follow the biblical historical records through from the life and death and resurrection of JESUS, to the lives of the Apostles and early disciples, all of them kept all of God’s 10 commandments including God’s 4th commandment as shown in the biblical records * Matthew 12:1-8; 10-12; 24:20; Mark 3:1-5; Luke 6:1-10; 13:14-16; 14:1-5; John 7:22-23; 9:14; Mark 1:21; Mark 6:2; Luke 4:16; 31; Luke 14:1; 23:56; John 2:6; Matthew 16:24; 1 Corinthians 11:1; Ephesians 5:1-21; Peter 2:20-22; Acts 13:14; 13:27; 13:44; 15:21; 16:13; 17:2; 18:4; Revelation 1:10. 

Now we could add the historical records to this but you have only asked for the biblical but if you’re interested the historical records show that Gods’ people since the death of JESUS have kept God’s Sabbath unbroken from the days of JESUS to this very present day. 

Finally, there is not one scripture in all the bible that says God’s 4th commandment of the 10 commandments has been abolished and we are now commanded to keep Sunday as a Holy day. This is a man-made teaching and tradition that has led many away from God and his Word and is not biblical. JESUS warns us about following man made teachings and traditions that break the commandments of God in Matthew 15:3-9. I can keep on going here but will stop for now. 

The problem today in regard to God’s 4th commandment Sabbath is that it has become such a man made tradition that it is entrenched in the Church as a whole even though there is no supporting scripture for this teaching. Even the scriptures many use to support Sunday worship deny Gods 4th commandment “seventh day Sabbath” are scriptures pulled from their context to make them say things they do not say. Happy to discuss these later. 

Remember dear friend *Exodus 20:8-11, only God’s Word is true and we should believe and follow it according to the scriptures over the teachings and traditions of men that break the commandments of God *Romans 3:4; Act 5:29; Matthew 15:3-9.

PS. Don't let anyone tell you there is no command to keep the Sabbath in the new covenant when Jesus, Paul and all the disciples kept the Sabbath and Jesus expected his disciples to be still keeping it after his death and resurrection. Everyone of God's 10 commandments are repeated in the new covenant. 

Hebrews 4:9. Therefore it remains for the people of God to keep the Sabbath.

God bless.