Divorce and little children. Matthew 19

 ³ Some Pharisees came to him to test him.
They attempted to get Jesus to incriminate himself through misinterpreting the law.
I am amazed he answered, but he did, and as in the Sermon on the Mount, his standards were more exacting than those of Moses

 They asked, “Is it lawful for a man to divorce his wife for any and every reason?”

   ⁴ “Haven’t you read,” he replied, “that at the beginning the Creator ‘made them male and female,’^[a] 5 and said, ‘For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh’^[b]? ⁶ So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.”

 ⁷ “Why then,” they asked, “did Moses command that a man give his wife a certificate of divorce and send her away?”

 ⁸ Jesus replied, “Moses permitted you to divorce your wives because your hearts were hard. But it was not this way from the beginning. ⁹ I tell you that anyone who divorces his wife, except for sexual immorality, and marries another woman commits adultery.”
Marriage is a physical and emotional knitting, a knitting of spirits, not to casually unraveled.
People change, marriages change. Many marriages go through unhappy patches, but over time, hearts change, love grows, and one may land up not wanting to trade that once-annoying (perhaps still annoying!) spouse for the world.
Because of Christ’s release of the Holy Spirit, we need despair of no man or woman. And because divorce is generally a traumatic unravelling of what has been knit together, it should be a last resort. 
Scripture does provides grounds for divorce. Violence is mentioned in Malachi.”I hate divorce,” says the Lord, “and I hate a man covering his wife with violence.”

 ¹⁰ The disciples said to him, “If this is the situation between a husband and wife, it is better not to marry.”
Rather than have a life-long unhappy marriage. 

The Little Children and Jesus

 ¹³ Then people brought little children to Jesus for him to place his hands on them and pray for them. But the disciples rebuked them. ¹⁴ Jesus said, “Let the little children come to me, and do not hinder them, for the kingdom of heaven belongs to such as these.” ¹⁵ When he had placed his hands on them, he went on from there.