The final letter of SPA is Adoption. Pastor's wife Kathy Bailey taught the final session. She described the characteristics of a true son or daughter of God versus someone who feels himself a slave.
A Son is confident of his status, feels protected and provided for, secure, free, uninhibited. He is transparent, assured of acceptance and has a sense of peace.
A Slave is fearful, relies on his own efforts, legalistic. He is self-conscious and self-judgmental. Because he judges himself harshly, he judges everyone else just as harshly. He is perfectionistic, anxious, lonely. He feels guilty about everything. Ultimately, he is completely defeated.
The clearest evidence of adoption is whether you can extend grace to others and don't need to bind them with your own hang-ups. A slave uses others to validate himself. Slaves obey out of duty; sons serve out of love.
Oddly, people tend to feel comfortable with Jesus but be afraid of the Father. Jesus is the first born of many brothers to make room for the brothers that will come under him by adoption. (Rom 8:29) God the Father makes us able to come and gives us full status as sons.