Please notice some of the firm, reassuring words and phrases that are used in the following verses :
I change not
neither shadow of turning
true from the beginning
endureth for ever
standeth for ever
to all generations
My counsel shall stand
I will do all my pleasure
hath he said, and shall he not do it?
hath he spoken, and shall he not make it good?
immutability of his counsel
by two immutable things
anchor of the soul
both sure and stedfast
"For I am the LORD, I change not; therefore ye sons of Jacob are not consumed."
Malachi 3:6, KJV
"Jesus Christ the same yesterday, and to day, and for ever."
Hebrews 13:8, KJV
"Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning."
James 1:17, KJV
". . . For ever, O LORD, thy word is settled in heaven."
Psalms 119:89, KJV
"Thy word is true from the beginning: and every one of thy righteous judgments endureth for ever."
Psalms 119:160, KJV
"Remember the former things of old: for I am God, and there is none else; I am God, and there is none like me, Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and I will do all my pleasure:"
Isaiah 46:9-10, KJV
"Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath: That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us: Which hope we have as an anchor of the soul, both sure and stedfast, and which entereth into that within the veil;"
Hebrews 6:17-19, KJV