God is in the business of calling. He is a relational Being and He premises His relationship on His call and our response to the call. The first person God called was also the first person He created - Adam. We don't know how many times God called Adam and what Adam's responses were, but we know the the details of the last time He called Adam in Genesis 3:9. The response was negative - and the consequence was disastrous, both for Adam and for the generations after him.

God never called Adam again after that episode.

Today, it is your turn. God is calling you one more time. What will your response be?

For those who have never responded to Him positively, He is calling you unto salvation. Unto light. Unto life eternal.
For those who have given the much needed initial response, He is still calling you unto holiness and unto service.

Again, I ask, "What will your response be?"

Therefore, the Holy Spirit says, "Today, if you will hear His voice, do not harden your heart as in the rebellion..."

God bless you.