Vera and Josiah always fight!

Vera and Josiah always fight with each other. Quite tough for us to continue to teach them to be nice to each other. Vera is getting nasty and always use very rude words with adults..still guiding her to the right path..I didn't cane her anymore, but ask her to kneel and pull her ears for 10-15 minutes..she always forgot that she has to behave..Pray that both of them will grow up with a strong christian value that will help others.