Ex 40:13,. Isa 61:1, Lk 4:16-21
In the Old Testament, God appointed priests by anointing them with oil, and through those priests, they were entrusted with the task of sacrificing the sins of the people of Israel. (Ex 30:30, Ex 40:13)
Ex 30:30 And thou shalt anoint Aaron and his sons, and consecrate them, that they may minister unto me in the priest's office.
Ex 40:13 And thou shalt put upon Aaron the holy garments, and anoint him, and sanctify him; that he may minister unto me in the priest's office.
In the Old Testament, it was prophesied that God would send the anointed one, Christ, to save man. (Isa 61:1)
Isa 61:1 The Spirit of the Lord God is upon me; because the Lord hath anointed me to preach good tidings unto the meek; he hath sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to them that are bound;
Jesus is the very Christ prophesied in the Old Testament. (Luke 4:16-21)
Luke 4:16 And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read. 17 And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written, 18 The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised, 19 To preach the acceptable year of the Lord. 20 And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him. 21 And he began to say unto them, This day is this scripture fulfilled in your ears.