The proper context for understanding the bridesmaid parable is to have an understanding of the marriage customs of the times of Jesus. The Bride was responsible for making sure that everything and everyone, guests, hired folk and servants, were all in readiness for the coming of the groom. The bridesmaids without oil could have been made ready by the bride or at least be assigned different duties.. Their real error was not being in place when the groom came causing them to be shut out. The parable says that the bridesmaids returned. They had returned having gotten their oil. But their oil did not avail them as they were too late FOR THE GROOM’S COMING as they were not in place when he came. The Bride could have helped them. That is why the Bridesmaids were foolish. Their pride and shame kept them from admitting their lack of foresight and need of help and thus they were lost to the outer darkness.
As for your scriptures I say they complement the parable of the Bridemaids. If one is not prepared then one should ask of the Lord for Salvation and become a part of his Bride which will equip one for the wedding supper of the Lamb! The Lord is going to bring an end to history and human endeavors abruptly and unexpectedly. Watch and don’t be caught out, if unprepared, the bride can help you to get prepared.