1 Samuel 12:23 Moreover as for me, God forbid that I should sin against the Lord in ceasing to pray for you: but I will teach you the good and the right way.
In Samuel’s speech to the people, he says he will continue to act as priest for the people, though now they have a king. He will not cease to pray for them. A priest brings the people to God, making sacrifices for them and praying for them. His role as Judge is finished as he turns over political power to the new king. But he promises to continue in the role of priest, praying for the people.
As part of the priesthood of all believers, we too pray without ceasing for other people, especially for family and friends that God has placed under our care. This is an important priestly function Christians never cease carrying out even unto old age. Prayer is like breathing in that it is a natural part of life that continues until death. Unceasing prayer is the natural response to the Gospel.
Then also Samuel continues to function in the role of prophet. He would continue to teach the people the Word of God, the good and right way. He could not retire from that role either. We also as believers are called to be witnesses to Jesus, sharing what God has done for us and what the Spirit has revealed to us. Teaching by words and deeds is also a natural response to the Gospel. We want others to know and believe