Numeral adjective amphoteroi (both, all) in the New Testament

(Translation from NRSV for the New Testament with a few modifications for a more literal meaning)

Matthew

9: 17Neither is new wine put into old wineskins; otherwise, the skins burst, and the wine is spilled, and the skins are destroyed; but new wine is put into fresh wineskins, and so both (amphoteroi) are preserved."
13: 30Let both (amphoteroi) of them grow together until the harvest; and at harvest time I will tell the reapers, Collect the weeds first and bind them in bundles to be burned, but gather the wheat into my barn.'"
15: 14Let them alone; they are blind guides of the blind. And if one blind person guides another, both (amphoteroi) will fall into a pit."

Luke

1: 6Both (amphoteroi) of them were righteous before God, living blamelessly according to all the commandments and regulations of the Lord.
1: 7But they had no children, because Elizabeth was barren, and both (amphoteroi) were getting on in years.
5: 7So they signaled their partners in the other boat to come and help them. And they came and filled both (amphoteroi) boats, so that they began to sink.
6: 39He also told them a parable: "Can a blind person guide a blind person? Will not both (amphoteroi) fall into a pit?
7: 42When they could not pay, he canceled the debts for both (amphoteroi) of them. Now which of them will love him more?"

Acts

8: 38He commanded the chariot to stop, and both (amphoteroi) of them, Philip and the eunuch, went down into the water, and Philip baptized him.
19: 16Then the man with the evil spirit leaped on them, mastered all (amphoteroi) of them, and so overpowered them that they fled out of the house naked and wounded.
23: 8The Sadducees say that there is no resurrection, or angel, or spirit; but the Pharisees confess both (amphoteroi).

Ephesians

2: 14For he is our peace; in his flesh he has made both (amphoteroi) groups into one and has broken down the dividing wall, that is, the hostility between us.
2: 16and might reconcile both (amphoteroi) groups to God in one body through the cross, thus putting to death that hostility through it.
2: 18for through him both (amphoteroi) of us have access in one Spirit to the Father.