Doubt
here is the list of resources related to this subject

How Can You Doubt Your Doubts?

The beauty of doubting your doubts is that it strengthens your beliefs.

Helping Your Kids Deal with Doubts About Their Salvation

Faith is not inherited.

The Good News!

The resurrection of Jesus Christ makes all of life worth living, and that is “GOOD NEWS!”

Discipleship 101: Helping New Believers Understand Eternal Security

Sometimes I Don’t Feel Saved

Bad Instruction Can Lead to Deconstruction

Questioning God and the Church

And this is the testimony, that God gave us eternal life, and this life is in his Son. Whoever has the Son has life; whoever does not have the Son of God does not have life.