Passage
But Jesus said to them, “For your hardness of heart, he wrote you this commandment.
Mark 10:5 (WEB)
Nearby Context
Mark 10:3 He answered, “What did Moses command you?”
Mark 10:4 They said, “Moses allowed a certificate of divorce to be written, and to divorce her.”
Mark 10:5 But Jesus said to them, “For your hardness of heart, he wrote you this commandment.
Mark 10:6 But from the beginning of the creation, God made them male and female.Genesis 1:27
Mark 10:7 For this cause a man will leave his father and mother, and will join to his wife,
Study Lenses
The verse centers on "jesus", "said", "hardness", "heart", "wrote", and "commandment". It is saying that the verse draws attention to "jesus" and "said", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 4's "They said Moses allowed a certificate of..." into verse 6's "But from the beginning of the creation...", so "jesus" and "said" belong inside that flow. In Mark context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "jesus" and "said" with trust shaped by these words, not by a vague optimism outside the passage.