What does it mean to take three sons in the crown (respect life, don't have an abortion)?

The phrase "the crown of three sons" means that there are three children in hit. This sentence means to remind people to respect life and not to have an abortion. Because abortion is not only a cruel deprivation of life, but also a moral mistake. Therefore, when you are pregnant and don't want children, you should take appropriate contraceptive measures to avoid unintended pregnancy.