In a great house (en megalēi oikiāi). Metaphor of a palace. He doubtless has the Kingdom of God in mind, but he works out the metaphor of a great house of the rich and mighty.
Vessels (skeuē). Old word skeuos. See note on Rom 9:21 for the same double use as here.
Of gold (chrusā). Old contracted adjective chruseos, only here by Paul.
Of silver (argurā). Old contracted adjective argureos, in N.T. here, Act 19:24; Rev 9:20.
Of wood (xulina). Old adjective, in N.T. only here and Rev 9:20.
Of earth (ostrakina). Late adjective, from ostrakon, baked clay, in lxx, in N.T. only here and 2Co 4:7.