'Twins' in the Bible

After three months we put out to sea in an Alexandrian ship that had wintered at the island and had the "Heavenly Twins" as its figurehead.

And not only this, but there was Rebekah also, when she had conceived twins by one man, our father Isaac;

for though the twins were not yet born and had not done anything good or bad, so that God’s purpose according to His choice would stand, not because of works but because of Him who calls,