'Observer' in the Bible

There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch,

So what if I sin? What have I done against you, you observer of humankind? Why have you made me your target? Why burden yourself with me?

“As I was lying in my bed, I also saw in the visions of my mind an observer, a holy one, coming down from heaven.

“The king saw an observer, a holy one, coming down from heaven and saying, ‘Cut down the tree and destroy it, but leave the stump with its roots in the ground and with a band of iron and bronze around it, in the tender grass of the field. Let him be drenched with dew from the sky, and share food with the wild animals for seven periods of time.’