'Countless' in the Bible

Your descendants shall be as [countless as] the dust of the earth, and you shall spread abroad to the west and the east and the north and the south; and all the families (nations) of the earth shall be blessed through you and your descendants.

Are they [self-proclaimed] servants of Christ?—I am speaking as if I were out of my mind—I am more so [for I exceed them]; with far more labors, with far more imprisonments, beaten times without number, and often in danger of death.

So from one man, though he was [physically] as good as dead, were born as many descendants as the stars of heaven in number, and innumerable as the sand on the seashore.

But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to myriads of angels [in festive gathering],