You don't think it takes faith to honour God's holy Sabbath? You don't believe the Sabbath is worthy of honour... Therefore you cannot observe it not having faith.
Oh you mean this bit
Exo_31:16 Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.
God never made a covenant with us gentiles and Jesus never gave the "law" to the gentiles.
or this bit
Heb 3:10 Wherefore I was grieved with that generation, and said, They do alway err in their heart; and they have not known my ways.
Heb 3:11 So I sware in my wrath,
They shall not enter into my rest.)
Heb 3:12 Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God.
you do know what the sabbath is do you not, you know what the law is "not resting, you working".
Heb 4:2 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it.
Heb 4:3 For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.
Heb 4:4 For he spake in a certain place of the seventh day on this wise, And God did rest the seventh day from all his works.
Heb 4:5 And in this place again, If they shall enter into my rest.
Heb 4:6 Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief:
Heb 4:7 Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.
Heb 4:8 For if Jesus had given them rest, then would he not afterward have spoken of another day.
Heb 4:9 There remaineth therefore a rest to the people of God.
Heb 4:10 For he that is entered into his rest, he also hath ceased from his own works, as God did from his.
Heb 4:11
Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.
you spoke of unbelief, the law is the evidence of those who dont believe. You are trying to justify your religion and its keeping of the sabbath, as I said before, you can do as you wish but you and your religion have no right to lay that stumbling stone before others. Be it upon your own head.