Prophetic voice builds people up. It edifies the people of God specially when its a comforting voice. The words of Isaiah when read by an Israelite who is in exile will have his hopes resurrected of going back to his homeland. This voice was for the cities of Judah surrounding Jerusalem. Their prosperity was related to the fortunes of Jerusalem and Isaiah was announcing a joyous news of the new leadership that was taking over them. It was none other than the Lord who would reign over Israel. The Lord would come with a strong arm. All this while the people of Israel saw the arm of cruel gentile rulers. Now it was time for them to experience the arm of God ruling in favor of them. He was going to recompense them and reward them for the injustice they underwent in the hands of the gentile rulers. The most comforting part is when God is their king, He would be their shepherd. A king with the heart of a shepherd, giving due diligence to every sheep in the fold. Shepherds were common in that part of the world and Isaiah was asking the people of Israel to identify that with the rule of God. The Lord would tend His flock and would carry the lambs. He would carry His lambs close to His heart so that no enemy would touch them. Those with the young who cannot commute freely,would be led gently and with kindness. This would be literally fulfilled in the millenial reign of Christ. When Jesus our Lord came, He demonstrated it too. Our God rules over us,carries us,holds us close to His heart and in times of difficulty He gently leads us. Praise the Lord!For further reading:Luke 15:3-7,Psalm 23..