Read 1 Samuel 16:1-13.
“And he sent and brought him in. Now he was ruddy, and withal of a beautiful countenance, and goodly to look to. And the LORD said, ‘Arise, anoint him: for this is he’” (v. 12).
  With the spiritual departure and downfall of King Saul, the LORD was sanctioning David to be anointed as the coming king of Israel.  David would be a spiritual example and inspiration for the people; his demonstrations of mercy, love, and obedience to God constituted an about-face from the practices of King Saul.  David’s psalms reveal his inner dependence and longing for God’s guidance and fellowship, as well as the LORD’s intervention in times of conflict.
  Conversion brings such a turning for us as well!  Penitents turn away from the old life where they flagrantly carried out their own will in violation of God’s commandments.  Jesus Christ becomes the King in our life; our allegiance and affection is focused on Him, and we pledge our loyalties to Him.  We have neither the ability nor the power to save ourselves from sin; our only hope is to surrender all governing powers to Jesus Christ as King of kings and convert to His rule in our hearts and lives. (Rodney B. Stearns)
“Proclaim him King, pronounce him blest;
He’s your defense, your joy, your rest:
When terrors rise and nations faint,
God is the strength of every saint.”
— Isaac Watts
Conversion is an about-face,
Preparing our hearts as God’s dwelling place.