“For all who are being led by the Spirit of God, these are sons of God.”
Romans 8:14

It was God’s love and desire bestowed on us to make us His children.  
This is a spiritual relationship.

Obedience secures the benefits of it:
“For whoever does the will of my Father in heaven is my brother and sister and mother.”  Matthew 12:50

All barriers broken down:
“So then you are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God.”  Ephesians 2:19
(Please read verses 12-21 for  the ‘no longer/but now' clarification of this portion of Scripture.)

Called brethren of Christ:
“For both He who sanctifies and those who are sanctified are all from one Father, for which reason He is not ashamed to call them brethren.”   Hebrews 2:11

Believers given the right to be the children of God:
“But as many as received Him (Jesus), to them He gave the right to become children of God, to those who believe in His name.”  John 1:12

“For you are all sons of God through faith in Christ Jesus.
For as many of you as were baptized into Christ have put on Christ.
And if you are Christ’s, then you are  Abraham’s seed, and heirs according to the promise.”  Galatians 3:26-7; 29

“Do all things without murmuring and grumbling,
That you may become blameless and harrmless, children of God without fault in the midst of a crooked and perverse generation, among whom you shine as lights in the world.”  Philippians 2:14-15

“See what kind of love the Father has given to us, that we should be called children of God; and so we are.”  1 John 3:1

This was God’s plan from the beginning:
“For those whom He foreknew He also predestined to be conformed to the image of His Son, in order that He might be the first born of many brothers (and sisters).”  Romans 8:29

Children, therefore heirs!:
“And if children, heirs also, heirs of God and fellow heirs with Christ, provided we suffer with Him in order that we may also be glorified with Him.”  Romans 8:17
(Do not miss the condition! It is God at work in His family now.)

God made sure His promise as we see in Hebrews 6:17-18 
“Because God wanted to make the unchanging nature of His purpose very clear to the heirs of what was promised, He confirmed it with an oath.
God did this so that, by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope offered to us may be greatly encouraged.”  

This being so, let us stand firm in the words of the Apostle Paul in 
Colossians 1:10-12,
“That you may have a walk worthy of the Lord, fully pleasing Him, being fruitful in every good work and increasing in the knowledge of God; strengthened with all might, according to His glorious power, for all patience and long suffering with joy; giving thanks to the Father who has qualified us to be partakers of the inheritance of the saints in the light.”

Oh the amazing grace of our Father through the glorious redeeming work of Christ Jesus on our behalf!  It is so beyond our comprehension that it will take eternity to know the fullness of the blessings bestowed on us, His children.

All praise, honor and glory to the Almighty Omnipotent, Omniscient, Omnipresent God; Father, Son and Holy Spirit!  Amen