'Personal' in the Bible

It was shown to you so that you might have [personal] knowledge and comprehend that the Lord is God; there is no other besides Him.

You are to bring there your burnt offerings and sacrifices, your tenths and personal contributions, your vow offerings and freewill offerings, and the firstborn of your herds and flocks.

then Yahweh your God will choose the place to have His name dwell. Bring there everything I command you: your burnt offerings, sacrifices, offerings of the tenth, personal contributions, and all your choice offerings you vow to the Lord.

Within your gates you may not eat: the tenth of your grain, new wine, or oil; the firstborn of your herd or flock; any of your vow offerings that you pledge; your freewill offerings; or your personal contributions.