God.
I'm three, yet each part's the same; in the end I'm only one.
The Holy Trinity, the godhead three-in-one.
I surround & protect all life on Earth, even those who still worship the Sun.
Omnipresence and omni-benevolence are traits usually associated with God.
In the heavens I am holy, I'm sure you've heard of the notion,
I shouldn't have to explain how this applies, right?
So the people of my beginning have to use quite a lot of lotion.
Jewish men practice circumcision as a part of their religion, which results in decreased lubrication to the penis, and thus requires the use of lubricating lotions during certain activities.