Joshua 1:9 Have I not commanded you? Be strong and courageous. Do not be afraid; do not be discouraged, for the LORD your God will be with you wherever you go.”
Isaiah 54:17 no weapon forged against you will prevail, and you will refute every tongue that accuses you. This is the heritage of the servants of the LORD, and this is their vindication from me,” declares the LORD.
2 Timothy 1:7 For God has not given us a spirit of fear, but of power and of love and of a sound mind.
One simple way is to ask who they say Jesus is. 1 John 4:2 This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God,
1 John 2:22, 23 Who is the liar? It is whoever denies that Jesus is the Christ. Such a person is the antichrist—denying the Father and the Son. Anyone who denies the Son doesn’t have the Father, either. But anyone who acknowledges the Son has the Father also.