don't do what you tell others not to

Genesis 38

v24

And it came to pass about three months after, that it was told Judah, saying, Tamar thy daughter in law hath played the harlot; and also, behold, she [is] with child by whoredom. And Judah said, Bring her forth, and let her be burnt.

Judah was such a hypocrite: he accused Tamar of being immoral when it and other sins were actually his own doing.

v26a

And Judah acknowledged [them], and said, She hath been more righteous than I; because that I gave her not to Shelah my son...

This is just like what I said yesterday. When we can see that something is a bad and wrong thing to do, sometimes it is good to tell other people that it is sin and that they shouldn't do it; but then, we need to make sure to stand firmly against participating in that same thing ourselves, so that we don't become hypocrites, telling other people not to do a certain thing but doing the same thing ourselves.

Romans 2:1

Therefore thou art inexcusable, O man, whosoever thou art that judgest: for wherein thou judgest another, thou condemnest thyself; for thou that judgest doest the same things.