A foster child receives parental care but is not kin by blood or related legally. A guardian is a person legally entrusted with the care and responsibility of another person, usually a minor, who is often called a ward. Neither of these is the same as an adoption although they sometimes lead to it.
One can adopt another person and thus be an adopter or one can be adopted and become an adoptee. However, one can also adopt an attitude, policy, course or habit. What or whom one adopts can make a huge change in one’s life. The old ways may be discarded or can be melded into this new situation. The age and experience of an adoptee will cause the process to vary and, no doubt, fluctuate almost daily. Those who successfully blend a new human into an existing family deserve our praise and admiration. Adopting a new pet or a new policy can also dramatically change the dynamics of one’s routine.
In one sense all created humans are God’s children whom He loves dearly. (Jn 3:16) However, as we examine several scriptures, we begin to understand the deeper relationship He desires. It is true that nothing in all creation is able to cause God to stop loving us. (Rom 8:39) The same chapter talks of stubborn children who rejected God’s love and became “God-haters.” (v30) Therefore, “God gave them over to the sinful desires of their hearts… (v 24) In another place we find that God will allow those who love a lie and hate the truth to ignore His grace. (2 Thes 2:10-11)
God very much wants His adopted children to reciprocate His love. (Eph 1:5) He desires, “born-again” (Jn 3:3) (Jn 1:12) children. Jesus calls those who are immersed into Him (Rom 6:3) His “brothers and the children God has given me.” (Heb 2:11-13) Everyone who loves and obeys the Father is born of God and loves the Son as well. (1 Jn 5:1) Those who do this receive, “…the Spirit of sonship and by Him we cry, …Abba Father.” As His adopted children, we are not foster children nor wards, “…we are heirs of God and co-heirs with Christ…” (Rom 8:14-17) (Gal 4:4-7) Our full inheritance awaits us in the place Jesus is preparing for us. (Jn 14:1-3)