Passage
For this cause, a man shall leave his father and mother and shall cleave to his wife.
For this cause, a man shall leave his father and mother and shall cleave to his wife.
Mark 10:5 To whom Jesus answering, said: Because of the hardness of your heart, he wrote you that precept.
Mark 10:6 But from the beginning of the creation, God made them male and female.
Mark 10:7 For this cause, a man shall leave his father and mother and shall cleave to his wife.
Mark 10:8 And they two shall be in one flesh. Therefore now they are not two, but one flesh.
Mark 10:9 What therefore God hath joined together, let no man put asunder.
The verse centers on "cause", "shall", "leave", "father", "mother", "cleave", and "wife". It is saying that the verse draws attention to "cause" and "shall", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 6's "But from the beginning of the creation..." into verse 8's "And they two shall be in one...", so "cause" and "shall" 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 "cause" and "shall" with trust shaped by these words, not by a vague optimism outside the passage.