Interposition as illustrated in Psalm 69 contains the idea of coming between two parties in order to bring peace. To rescue one by intervening on his behalf. Noah Webster comments in his historic dictionary in reference to the term: “how many evidences have we of divine interposition in favor of good men!” – Surely Psalm 69 is one of those sterling examples Webster had in mind. Here is the doctrine of interposition applied in its ultimate instance – the Gospel. David lifts his song of petition to the Lord, pleading that God would intervene on his behalf. Whatever provisional answer David may have received to his plea at the time, such as deliverance from Saul, or victory over a warring neighbor nation – the ultimate fulfillment of the cry of Psalm 69 would come in Jesus Christ, the Son of David, who would interpose on behalf of all of the elect. Standing in their place of deserving judgement providing full and final atonement for their sins! Thus David's cry for God to interpose and save him is answered in the incarnation when God Himself takes on flesh, steps into history, and endures all of the sufferings described in Psalm 69 on behalf of David and all God's people for all time.