Galatians 4:21-5:1 (Concordant Literal Translation)...
21 Tell me, you who want to be under law, are you not hearing the law?
22 For it is written, that Abraham had two sons, one out of the maid and one out of the free womam.
23 But the one, indeed, out of the maid is begotten according to flesh, yet the one out of the free woman through the promise:
24 which is allegorizing, for these women are two covenants; one, indeed, from mount Sinai, generating into slavery, which is Hagar.
25 Yet Hagar is mount Sinai in Arabia; it is in line with the Jerusalem which now is, for she is in slavery with her children.
26 Yet the Jerusalem above is free, who is mother of us all.
27 For it is written, "Be glad, barren one, who art not bringing forth! Burst forth and implore, thou who art not travailing! For many are the children of the desolate, Rather than of her who has the husband."
28 Now you, brethren, as Isaac, are children of promise.
29 But even as then, the one generated according to flesh persecuted the one according to spirit, thus also it is now.
30 But what is the scripture saying? Cast out this maid and her son, for by no means shall the son of the maid be enjoying the allotment with the son of the free woman.
31 Wherefore, brethren, we are not children of the maid, but of the free woman.
1 For freedom Christ frees us! Stand firm, then, and be not again enthralled with the yoke of slavery.
This passage reveals that the historical person Abraham (representing God) had two sons, the historical Ishmael (representing attempting to attain the the presence of the voice and approval of God in one's life by a disciplined path, specially by learning Scripture better and trying harder) and historical Issac (representing the freely given work of God, His gracious showing up and showing off in one's life.) These two sons are from two historical women, Hagar and Sarah which in turn represent two historical covenants as well as two actual physically existing mountains (mountains represent kingdoms.)
Notice in the following passage from Hebrews how the difference between sons with a lawful inheritance and bastards, who are sons of the same Father, yet do not qualify as heirs, is determined by different mothers, the two women mentioned above, Hagar and Sarah. The mother is the soul that concieves, a kingdom with certain laws in operation, and can even represent a group like a church. What "Ecclesia" you are a part of makes a big difference. " 15 Are you not aware that your bodies are members of Christ? Taking, then, the members of Christ away, should I be making them members of a prostitute? May it not be coming to that! Or are you not aware that he who joins a prostitute is one body? For, He is averring, the two will be one flesh. Now he who joins the Lord is one spirit." (1 Co 6:15-17, CLT)
Hebrews 12:3-11 (Concordant Literal Translation)...
3 For take into account the One Who has endured such contradiction by sinners while among them, lest you should be faltering, fainting in your souls.
4 Not as yet unto blood did you repulse, when contending against sin.
5 And you have been oblivious of the entreaty which is arguing with you as with sons: My son, do not disdain the discipline of the Lord, Nor yet faint when being exposed by Him.
6 For whom the Lord is loving He is disciplining, Yet He is scourging every son to whom He is assenting.
7 For discipline are you enduring. As to sons is God bringing it to you, for what son is there whom the father is not disciplining?
8 Now if you are without discipline, of which all have become partakers, consequently you are bastards and not sons.
9 Thereafter, indeed, we had the fathers of our flesh as discipliners, and we respected them. Yet shall we not much rather be subjected to the Father of spirits and be living.
10 For these, indeed, disciplined for a few days as it seemed best to them, yet that One for our expedience, for us to be partaking of His holiness.
11 Now all discipline, indeed, for the present is not seeming to be a thing of joy, but of sorrow, yet subsequently it is rendering the peaceable fruit of righteousness to those exercised through it.
2 Corintians 11:1-3 (Concordant Literal Translation)...
1 Would that you had borne with any little imprudence of mine! Nay, and be bearing with me,
2 for I am jealous over you with a jealousy of God. For I betroth you to one Man, to present a chaste virgin to Christ.
3 Yet I fear lest somehow, as the serpent deludes Eve by its craftiness, your apprehensions should be corrupted from the singleness and pureness which is in Christ.
Our own lives are to be allegories that play out the truth of God and the gospel by which we are saved.