The Father of lights, with whom is no variableness neither shadow of turning.

James 1:17

I think it is only James who used this description of the Father of Jesus Christ, He is the Father of lights.  He is the true light.   I think this means that the light of Christ that enlightens all believers, even today, is the true light that does not change – it just keeps shining!

In God there is no variableness neither shadow of turning. God is pure light, in all ways from all angles.  He is the true light.  His light shone on Abraham, on the apostles, and on us!  I stand in amazement and praise!

God alone is the Father of lights – the source of all light. That light shined through Jesus Christ.

There is only one Jesus.  He is the light as his Father is the light!  He invites us to share in that one and only divine light.  Why should we seek another?  It is Jesus!