For all who are led by the Spirit of God are sons of God. For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons, by whom we cry, “Abba! Father!” The Spirit himself bears witness with our spirit that we are children of God, and if children, then heirs—heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him.
The Westminster Larger Catechism succinctly explains the verse's benefits of this adoption as sons of God-
What is adoption?
"A. Adoption is an act of the free grace of God, in and for his only Son Jesus Christ, whereby all those that are justified are received into the number of his children, have his name put upon them, the Spirit of his Son given to them, are under his fatherly care and dispensations, admitted to all the liberties and privileges of the sons of God, made heirs of all the promises, and fellow-heirs with Christ in glory."
Think of that for a moment...how great and bountiful this gift is.
At Thanksgiving we often see the American symbol of the 'horn of plenty' also known as the Cornucopia. The horn is filled to overflowing with harvest items from this time of year, such as this depiction from American Greetings freebies:
Adoption is an act of the free grace of God, in and for his only Son Jesus Christ, whereby all those that are justified are given gifts from HIS harvest of plenty. Picture the overflowing cornucopia of plenty from Jesus with His harvest treasures:
--received into the number of his children,
--have his name put upon them,
--the Spirit of his Son given to them,
--are under his fatherly care and dispensations,
--admitted to all the liberties and privileges of the sons of God,
--made heirs of all the promises, and
--fellow-heirs with Christ in glory.
All Christians have these and so much more to be thankful for. I know I am grateful for the opportunity to be grateful to Jesus forever.