Why do the SDA reject physical circumcision?

Circumcision is a requirement given to the patriarchs/Mosaic law which somehow the SDA shuns yet hold on to the sabbath law from the same covenant Both requirements are said to be perpetual and everlasting. Genesis 17:13 NIV > Whether born in your household or bought with your money, they must be circumcised. ***My covenant in your flesh is to be an everlasting covenant***. 14 Any uncircumcised male, who has not been circumcised in the flesh, will be cut off from his people; he has broken my covenant.” Exodus 3116 NIV >***The Israelites are to observe the Sabbath, celebrating it for the generations to come as a lasting covenant***. The SDA observe the physical sabbath(abstain from work/kindle no fire) as well as the spiritual requirements but when it comes to circumcision they only observe the spiritual requirements(circumcise the heart) and neglect the physical side. Why do the SDA hold onto the sabbath law yet neglect circumcision?