Train your children so they can be taught.
The most important thing for a child is to know that he is loved. But if that is all he has, he will have a bad life.
He needs to learn to be aware of others and to be courteous. For little ones, this begins at about nine months and begins at the table. Such a little one is not going to get it right away and at that age, not by example. But as soon as the high chair is pulled up to the table, the training must begin.
No toys at the table. Only one person should speak at a time, and that is a real challenge for a little one who does not understand. But, he does not need to understand. By the time he is one, he should be able to respond to words or signals to be silent. This will take some months, but he will learn. He will forget quickly, but if you are consistent and do not relax in calmly addressing the matter each time, he will get it. By the time he is two, he can sit happily and learn to enjoy others. No negative comments about the food.
Setting food in front of children and then removing yourself to do something else should be rare. Children should not be left alone at the table absent a pressing reason.
These things must be done by prayer or they become personal projects rather than the training of a Soldier of The Cross. This is not about being a perfect parent. This is about serving the King of Kings.
Another important thing for a child, is to learn not to run in a public place or in someone else's home. It builds an immediate awareness of others and instills a respect for what is happening around him. It takes consistency and by the time he is four or so, if he is consistently reminded and does not remember, standing in the corner once or twice usually does the trick.
This is not about good and bad. This is about training our children to be sensitive and alert to others and their needs.
Before church, speak to your children about what is expected. If the child misbehaves, it is not a reflection on the parent. If that parent does nothing, then it becomes a reflection on the parent. Don't wait until your child is loud. If he is testing you and making quiet little sounds, it is still a power struggle. Get right on it, even if you have to carry out a howling child. You must win that power struggle.
We all pick our battles. Pray about which are yours. Hold out for the things that make your children aware of others and create in them a capacity to serve.
Once your child is about eighteen months, he begins to learn by example.
Be that example. You don't need to be perfect. You just need to live according to the truth of God's Word - you are not your own. You were bought with a Price.
Everything by prayer and supplication. . .