'Touched' in the Bible

Zipporah took a flint knife, cut off her son's foreskin, and touched Moses' feet with it, saying while doing so, ""because you are a bridegroom of blood to me."

He is not to be touched by a hand, but is to be stoned or have an arrow put through him; man or beast, he is to be put to death: at the long sounding of a horn they may come up to the mountain.

The poles shall remain in the rings of the ark; they shall not be removed from it [so that the ark itself need not be touched].