Mark 9:12-13 And he answering said to them, Elijah indeed having come first restores all things; and how it has been written about the son of man, that many things he should suffer, and should be treated with contempt.

ABP_Strongs⁽ⁱ⁾

12 G3588 And he G1161 G611 answering G2036 said G1473 to them, G* Elijah G3303 indeed G2064 having come G4412 first G600 restores G3956 all things; G2532 and G4459 how G1125 it has been written G1909 about G3588 the G5207 son G3588 G444 of man, G2443 that G4183 many things G3958 he should suffer, G2532 and G1847 should be treated with contempt.

13 G235 And G3004 I say G1473 to you, G3754 that G2532 also G* Elijah G2064 has come, G2532 and G4160 they did G1473 to him G3745 as much as G2309 they wanted, G2531 as G1125 it was written G1909 of G1473 him.