Acts 15:20
but to write [urging] them to avoid [eating] what is contaminated by [its association with] idol worship, from sexual immorality, from [eating] strangled animals and from [drinking] blood.
Romans 12:2
And you people must not be conformed to [the values and standards of] this age, but you should become transformed [i.e., changed in attitude and action] by having your mind renewed [i.e., to think in a totally different way]. Then you will be able to determine [and practice] God's will, the thing that is good, and acceptable and perfect.
1 Peter 1:16
because it is written [Lev. 11:44f], "You shall be holy [i.e., separated from sin] even as I am holy."