How Do Christians Know When God Is Speaking to Them?

[Angrboda]

Well, in recent history it seems "god" told almost every Republican candidate to run for president.  He told a woman to kill her kids, and he's told various parents to pray and not get their kids medical treatment.

Over all, I would say don't listen to the voices in your head.

Unless it's Jeff, he's awesome!

If the voices in scripture contradict Jesus' message in the bible, then ignore them.

1 John 4:1English Standard Version (ESV)

Test the Spirits
4 Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world.

And how do you know whether the test comes up negative. What does a negative result look like. It seems to me that you attribute things to the 'voice' of God regardless of whether they are positive or negative. What clear sign would you have that God is not talking to you?