Moses counted the reproach on Christ's sake more than all the greater riches of Egypt. (Heb 11:24-26)

Heb 11:24 By faith Moses, when he was come to years, refused to be called the son of Pharaoh's daughter; 25 Choosing rather to suffer affliction with the people of God, than to enjoy the pleasures of sin for a season; 26 Esteeming the reproach of Christ greater riches than the treasures in Egypt: for he had respect unto the recompence of the reward.

Moses wrote the Pentateuch. Moses actually wanted to preach Christ through the Pentateuch. Moses recorded in Genesis that the sin of the first father, Adam, caused all mankind to become sinners and perish, and God promised to send Christ as the solution. (Gen 3:15)

Gen 3:15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.

In Exodus, Moses praised Christ, the Lamb of God who was to come. (Rev 15:3, Ps 98:2)

Rev 15:3 And they sing the song of Moses the servant of God, and the song of the Lamb, saying, Great and marvellous are thy works, Lord God Almighty; just and true are thy ways, thou King of saints.

Ps 98:2 The Lord hath made known his salvation: his righteousness hath he openly shewed in the sight of the heathen.

Also, through Exodus and Leviticus, Moses preached about Christ as the true priest and tabernacle. Also, in Deuteronomy, Moses preached that God would raise up a prophet like himself, Christ. (Deut 18:15)

Deut 18:15 The Lord thy God will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken;

In conclusion, Moses preached Christ through the Pentateuch. (Lk 24:27, Jn 1:45, Jn 5:46)

Lk 24:27 And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.

Jn 1:45 Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph.

Jn 5:46 For had ye believed Moses, ye would have believed me; for he wrote of me.