Matthew 17:11-13

Young's Literal Translation

¹¹ And Jesus answering said to them, `Elijah doth indeed come first, and shall restore all things,

¹² and I say to you -- Elijah did already come, and they did not know him, but did with him whatever they would, so also the Son of Man is about to suffer by them.'

¹³ Then understood the disciples that concerning John the Baptist he spake to them.