The attributes of God are a fascinating study. Among those attributes is one I find very comforting. This is the immutability of God. In short, immutability means that God does not change. And that makes sense because of His perfection. As the ultimate in perfection, any change would represent something inferior in nature. God said it this was through the prophet Malachi:

For I am the Lord, I change not; (Malachi 3:6a KJV)

This unchanging nature is also attributed to Jesus Christ in the letter to the Hebrews.

Jesus Christ the same yesterday, and to day, and for ever. (Hebrews 13:8 KJV)

But what are the implications of this attributes for us as believers?

God will not change His mind about our salvation.
Jesus Christ is not a fickle savior. He does not save us only to change His mind when we don’t measure up. Some may quit on God, but they are not lost because He kicks them out. They are lost because they left.

For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come, Nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord. (Romans 8:38, 39 KJV)

God will not change His Word.
The words that have been spoken by God are eternal. God cannot lie, if for no other reason than whatever He says instantly becomes reality! If you are standing on the promises of God found in His Word, then you can rely on those promises because God’s Word is immutable!

Forever, O Lord, Your word is settled in heaven. Your faithfulness endures to all generations; You established the earth, and it abides. (Psalm 119:89, 90 NKJV)

For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled. (Matthew 5:18 KJV)

God does not change His mind about worship.
When God indicates that He desires and blesses acts of worship, He does not come along later and decide He doesn’t like them any more. Well what about the sacrifices of animals in the Law of Moses? Surely God no longer desires or requires that, does He? Well yes, the principle still stands. Without the shedding of blood there is no forgiveness of sin (Hebrews 9:22).
When God says to sing praises to His name, He still delights in such. When the Psalms speak of praising The Lord with instruments (Psalm 150), He has not reversed His preferences and decided it is now a sin to do so. Worship is about what God wants, not what we want, and is based on His immutable nature.

God doesn’t decide that our case is too difficult
No matter what situations and circumstances life throws at us, we can rest in the immutability of God. God is our anchor and a rock that we can rely upon.
And so we love, honor, and worship the unchanging One as we go through the struggles of life.

The eternal God is your refuge, And underneath are the everlasting arms; (Deuteronomy 33:27a NKJV)

God is the One we can count on to be constant and sure. So let us place our trust and faith fully in His unchanging character to carry us through.