In this very short statement of scripture the Apostle makes a very comprehensive declaration of the gospel. In this scripture we have a description of the what, where, why and when of the gospel of God’s grace and glory that shines in the face of Jesus Christ (2 Cor. 4:6).
1). First, we see the what dwells in the Lord Jesus Christ, "All Fulness."
All the fulness of the Godhead dwells in Him, "In Him dwelleth all the fulness of the Godhead bodily" (Col. 2:9). All the attributes and characteristics of God dwell in Him, for He is God. Even when He was manifested in the flesh, He never stopped being God (John 1:14). We also see that all the fulness of all spiritual blessings dwell in Him (Eph. 1:3). The believer stands complete and accepted in the Beloved (Eph.1:6; Col. 2:10). We are not asked to contribute to our salvation, but rather rest in Him who provided and performed all things for us (Psa 57:2).
2). Where does this fulness dwell? "In Him."
Where else could this fulness be placed? Jesus Christ is the only one suitable to contain all fulness. He is the storehouse of spiritual blessings to His people (1 Cor. 1:30). He also has all authority and power to wisely and sovereignly distribute these blessings to His chosen people. Pharaoh told the people to go unto Joseph for corn (Gen.41:55). The Lord Jesus Christ is our Joseph, we look to Him for the necessities of our spiritual life (John 14:6).
3). Why does this fulness dwell in Him? "It pleased the Father."
That is answer enough! That one answer may apply to ten thousand unanswerable questions. It pleased our God to send Him to be our Surety and High Priest (Heb. 2:17). It pleased our God to bruise Him in the believers room and stead at Calvary (Isaiah 53:10). It also pleased God to put all the fulness of salvation in Him (Eph. 1:11; Psa 135:5). What pleases God always pleases His people. "This is my beloved Son in whom I am well pleased" (Matt.3:17). Believers are filled with delight that their salvation honors God’s mercy and His justice and they would not have it any other way (Psa. 85:10).
4). When does this fulness dwell in Him? Always! "In Him dwelleth" (Col. 2:9).
It has been there since the beginning (John 1:1). In eternity past, in the present and in eternity future this fulness will always abide in Jesus Christ. He says, "I am the Lord, I change not; therefore you sons of Jacob are not consumed" (Mal. 3:6). Although multitudes of sinners have been redeemed by the blood and righteousness of Jesus Christ, His fulness of mercy and grace to needy sinners has never been diminished and will never be exhausted. There is a permanent fulness in Him! This ought to encourage every sinner to look to Him, come to Him and rest in Him (Isaish 55:1-5).