Just because it seems like God is telling you to do something, that doesn't necessarily mean that He actually is. It can often be really hard to know what God's will is, what He wants for you and from you. Sometimes something will happen that seems like it can't just be a coincidence, and we think, "God is trying to tell me something!" And the truth is, He might be! But we need to be really, REALLY careful about situations like that. In many cases, it's easier to know what God's will is NOT than knowing what God's will IS. If you think that God wants you to do something that He has already told you not to do in Scripture, it's not God's will. Simple as that.