Since the early days of the church, people have tried to deny the Incarnation and still call themselves Christians. The little letter of 2 John is an answer to them and a reaffirmation of the truth about God in the flesh.
Paul addressed a serious conflict in the church and how to live differently: in unity, joy, gentleness, peace, and goodness.
Christians need to learn to speak with joy, listen with discernment, and grow in grace.
In the triumphant conclusion of Exodus, God filled his dwelling and led his people, which he does today in a much greater way.