why is the sabbath not been kept by all Christians? I need guidance please
Creation of the physical earth, physical covenant with Israel with blessings on earth, physical rest.
Gen 2:1 Thus the heavens and the earth were finished, and all the host of them.
Gen 2:2 And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made.
Gen 2:3 And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which God created and made.
Exo 20:8 Remember the sabbath day, to keep it holy.
Exo 20:9 Six days shalt thou labour, and do all thy work:
Exo 20:10 But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
Exo 20:11 For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
Creation of the spiritual earth, spiritual covenant with Israel with spiritual blessings, spiritual rest.
Isa 65:17 For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind.
Joh 14:2 In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you.
Joh 14:3 And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also.
Isa 28:10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:
Isa 28:11 For with stammering lips and another tongue will he speak to this people.
Isa 28:12 To whom he said, This is the rest wherewith ye may cause the weary to rest; and this is the refreshing: yet they would not hear.
Luk 17:20 And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation:
Luk 17:21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you(when you receive the Spirit to salvation).
Rom 3:31 Do we then make void the law through faith? God forbid: yea, we establish the law.(live up to it by the power of the Holy Spirit which a Spirit led life will not fulfill the lusts of the flesh).
Rom 13:10 Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
Rom 7:12 Wherefore the law is holy, and the commandment holy, and just, and good(the laws of love, moral laws which include the 10 commandments for they are laws of love towards God and people for the spiritual law was in the Old Testament with the physical law).
Rom 7:14 For we know that the law is spiritual: but I am carnal, sold under sin.
Heb 11:13 These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
Heb 11:14 For they that say such things declare plainly that they seek a country.
Heb 11:15 And truly, if they had been mindful of that country from whence they came out, they might have had opportunity to have returned.
Heb 11:16 But now they desire a better country, that is, an heavenly: wherefore God is not ashamed to be called their God: for he hath prepared for them a city.
When a person receives the Spirit the kingdom of God is within them, and they belong to that kingdom, and that new earth, and not the physical earth.
The Spirit is our sabbath which is a spiritual rest now.
Col 2:14 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;
Col 2:15 And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
Col 2:16 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:
Col 2:17 Which are a shadow of things to come; but the body is of Christ.
Gal 3:23 But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed.
Gal 3:24 Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
Gal 3:25 But after that faith is come, we are no longer under a schoolmaster.
Gal 3:26 For ye are all the children of God by faith in Christ Jesus.
1Ti 4:4 For every creature of God is good, and nothing to be refused, if it be received with thanksgiving:
1Ti 4:5 For it is sanctified by the word of God and prayer.
Jesus took the physical ordinances of Israel away nailing them to His cross which include the sabbath days for they were contrary to us for they had no bearing on spiritual salvation.
Therefore let no person judge you in those physical ordinances by telling you to keep them, and you giving heed to them.
Isa 28:10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:
Isa 28:11 For with stammering lips and another tongue will he speak to this people.
Isa 28:12 To whom he said, This is the rest wherewith ye may cause the weary to rest; and this is the refreshing: yet they would not hear.
Some people will not hear and tell you to keep the sabbath day.
Rom 14:5 One man esteemeth one day above another: another esteemeth every day alike. Let every man be fully persuaded in his own mind.
Rom 14:6 He that regardeth the day, regardeth it unto the Lord; and he that regardeth not the day, to the Lord he doth not regard it. He that eateth, eateth to the Lord, for he giveth God thanks; and he that eateth not, to the Lord he eateth not, and giveth God thanks.
But if they want to do no work on the sabbath that is alright, but do not give heed if they tell you it is required by the Lord, for with the Spirit every day is a sabbath day, for we have that spiritual rest every day.