Some thoughts along with posed questions with the end intent of defining a few words in the language of God found in the Bible, and in the creation around us as it relates to man
knowing we do not understand a language until we think in that language, whereas mans language is finite and measured, Gods is not (which in one view (which are as leaves of a tree in symbolism) is the difference between the spirit and soul of our makeup).
The Hebrews writer said God spoke different ways in times past but now speaks to us by son (Israel saw his acts (Passover) Moses knew his ways (Pentecost) we know him by son (Tabernacles), but God has always spoken to us in this way, but we were unable to recognize the language he speaks to us in which comes in all kinds of forms but speak one same truth and the process of it. God narrows this truth down to every individual as being the truth that he reveals in them, and hidden to them (past the labor of our mind to find out) as only coming from him.
What does it mean in the language of God that the earth is his footstool in relationship to us as his offspring, or sons, meaning by this, that it represents the same truth to us as it does to him, being that he is our Father.
The implication that was given to David was in relation to David building his house through labor of hands (which begins with thought) as the picture found in the timber to build the house coming from the King of Tyre (Prince of Tyre), which should send us back to the garden to a seed of a serpent that through knowledge was the way to become like God, which this seed is seen in Cain who builds a city and names it after his son (this seed exposes our nakedness). God spoke to David by the picture of what a son is just as he had to Abraham, and to Adam, as with Cain, or Noah (where he becomes removed by one generation, a son of a son (which becomes the same thing that Cain became to Adam but in the form of a fourth river that comes out of the garden, a Euphrates, a river of Babylon/confusion), even in the number that they appear in signifies a truth that relates to one truth over all, too each individual as it relates also to us collectively as revealing one God. This is why you find the land of promise with the name Canaan, and not Israel, being in picture something they did not possess which in truth was their identity collectively as the first born, which the calling out of Jesus from Egypt was the narrowing back to one as it has been this in the first Adam in whom we were trapped in this perception of flesh (with the curse of labor (thorns thistles, crown of thrones) being the truth of who we are.
The picture of the definition of the earth is my footstool can be found in the reality of what it is that we overcome, wherein we are given or granted a white stone, with a name written in on it that no none knows but him who receives it, understanding that the language of God and God are not separate things no more than we are to him, but also in the truth that it reveals the process of coming to who we are as something which is of the soul, where the process of reasoning happens, but again this is the kingdom of God, or a perception that increases in us forever of what truth/God is by being him, or being one with him, which is the only way to know him, this is eternal life, to know the one who is eternal and it is found in this relationship or fellowship as a son, of a Father and son, it is uniquely individual, each one being the chiefest of ten thousand in whom this truth is revealed (no gender implied).
The habitation not made with hands is relational, in that the perception of it is an increase that has no end. We are his habitation as he is ours, our house, or temple in whom we live in. We are in the world, or this three dimensional realm, but we are not of it, or birthed by it. We have a name no one knows, just as our brother, and this from an inheritance that comes from our Father in whom it was in and of as one glory before all things were.
God does not build us a house with hands he is our house.