A chiasm is a literary structure where vocabulary of the first section of a passage is repeated in the second. The center of the chiasm is typically the climax of the passage. In Mark 14:7 the center and climax is Jesus retort to the disciples who criticized the woman who anointed him with precious perfume and had said the perfume should have been sold and the money given to the poor. He said to them that they will always have the poor with them to give money to.