“Jesus Christ is the same yesterday, and today, and forever. — Hebrews 13:8

Always the same! It is this which gives such value to the Gospels in which our Lord’s history is told. We are not reading there the life and sayings of one fickle and changeable like ourselves—but the life and sayings of a Redeemer who is now what He was then. We tell you confidently that all that love and gentleness and compassion and long-suffering and tenderheartedness which you may there see in your Lord and Savior’s character, are placed before you that you may understand the character of Him from whom alone we receive forgiveness and to whom alone your prayer must be made, and we say this because we know He is the same yesterday, today, and forever.

Always the same! It is this which makes the gospel so excellent and precious. We do not bid you depend on anything less than the tried corner-stone, the fountain whose water shall never fail—the city of refuge whose walls shall never be broken down—the sure Rock of Ages. Churches may decay and perish; riches may make themselves wings and fly away—but he who builds his happiness on Christ crucified and union with Him by faith, that man is standing on a foundation which shall never be moved, and will know something of true peace.”

— J. C. Ryle
"The Unchanging Christ"