God is the source of comfort.
We trust in God because He has poured out His love and grace on us.
Through the sacrifice of Jesus Christ, He gives us comfort and we live in unison in the same mindset that was also in Christ Jesus.
Now we are children of God and as such we have the rights of children, it only depends on us to believe.
5 Now may the God of patience and comfort grant you to be like-minded toward one another according to Christ Jesus,
Romans 15:5