The interpretation of the parable in Matthew 13:44 is: the field is the world, the man buying the treasure is God, the treasure is the true believers in Christ. The price that was paid was the very life of Jesus on the cross. Jesus saw,  a remnant of people who would receive Him as Lord, and "for the joy that was set before him," He endured the cross (Hebrews 12:2) and purchased us unto Himself with His own blood (Acts 20:28). He purchased the whole world, but not everyone will receive what He did. Therefore, the Church is hidden (scattered among the world).

Father God had the plan of salvation worked out before He even created the world. Most of us would not have created the world and mankind if we had known the heartache and terrible sacrifice this act would cost. But God is not man. In His judgment (which is the correct judgment) the prize was worth the cost.

God knows in advance those who will accept His offer of salvation. The Scriptures teach that we (believers) were chosen in Christ before the foundation of the world (Ephesians 1:4). That's how endless God's ability is. We were chosen in Christ before the world began. We are holy and without blame because God sees us through Christ. It was predetermined that we would be God's children. We have been accepted by God. The Father would no more reject us than He would reject Jesus, because we are accepted by the Father through Christ. We are redeemed and forgiven. We are truly blessed!