First of all, as a man's family, I can say this: Hello, distinguished guests. First of all, thank you for taking your daughter-in-law to my son's wedding in spite of your busy schedule. On behalf of my family, I thank you for coming here. We watched two children grow up. They were childhood friends. Now that we are married, both our families are very happy. I hope to live in harmony in my future marriage. Marriage is the sublimation of feelings and a commitment to each other. The son should also shoulder the responsibility of the family, take good care of his wife and tolerate each other for a long time.
Secondly, you can try the following joke: Hello, friends and relatives! Today is the wedding day for my son and daughter-in-law. I am very grateful to many friends and relatives who have come from afar. Today, everyone is their witness. As a father, I want to warn my son that marriage is not a contract, but a responsibility, and marriage life can last only if it is carefully managed.
Again, let's give it a try: Hello, friends and relatives! On the wedding day of my son and daughter-in-law, I really appreciate everyone taking time out of their busy schedules. Everyone must have a good time today. I thank you on behalf of the whole family. The couple are very excited to get married here as parents, and thank their in-laws for training such an excellent daughter. The future marriage life belongs to you two. You should be harmonious and beautiful, and go home often. Happy wedding!
In short, it is not difficult to see from the above three model essays that the speech made by the man's parents at the wedding scene is actually a thank you to the guests, a blessing to the children and an affirmation to the in-laws. All three aspects can be said to be enough to express sincerity.