Ex 20.12 Honor thy father and thy mother: that thy days may be long upon the land which the LORD thy God giveth thee.
Ex 20.8 Remember the sabbath day, to keep it holy.
Ex 31.13 Speak thou also unto the children of Israel, saying, Verily my sabbaths ye shall keep: for it is a sign between me and you throughout your generations; that ye may know that I am the LORD that doth sanctify you.