Hebrews 10:23

let us, without ever wavering, keep on holding to the hope that we profess, for He is to be trusted who has made the promise,

1 Corinthians 1:9

God is entirely trustworthy, and it is He through whom you have been called into this fellowship with His Son, Jesus Christ our Lord.

Hebrews 3:6

but Christ as a Son set over the house of God was faithful; and we are that house, if we keep up our courage and the joy that hope inspires to the very end.

Hebrews 11:11

By faith Sarah received strength to become pregnant, and actually gave birth to a child, although she was past the time of life for it, because she thought that He who made her the promise was to be trusted.

1 Corinthians 10:13

No temptation has taken hold of you but what is common to human nature. And God is to be trusted not to let you be tempted beyond your strength, but when temptation comes, to make a way out of it, so that you can bear up under it.

Hebrews 4:14

Since then we have in Jesus, the Son of God, a great High Priest who has gone right up to heaven itself, let us continue to keep a firm hold on our profession of faith in Him.

1 Thessalonians 5:24

He who calls you is trustworthy and He will do this.

2 Thessalonians 3:3

But the Lord is to be trusted, and He will give you strength and guard you from the evil one.

Titus 1:2

in the hope of eternal life which God, who never lies, promised ages ago

Hebrews 3:14

For we have become real sharers in Christ, if we keep firm to the end the faith we had at first,

Hebrews 6:18

so that by these two unchangeable things in which it is impossible for God to prove false, we who have taken refuge with Him may have encouragement strong enough to make us seize upon the hope that lies ahead of us.

James 1:6

But he must ask in faith, without a doubt, for the man who doubts is like a wave of the sea that is whirled and swayed by the wind.

Revelation 3:11

I am coming soon. Hold on to what you have, so that no one may take away your crown.

Treasury of Scripture Knowledge

Summary

Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)

Wavering

General references

Bible References

Wavering

James 1:6
But he must ask in faith, without a doubt, for the man who doubts is like a wave of the sea that is whirled and swayed by the wind.

For

Hebrews 6:18
so that by these two unchangeable things in which it is impossible for God to prove false, we who have taken refuge with Him may have encouragement strong enough to make us seize upon the hope that lies ahead of us.
Hebrews 11:11
By faith Sarah received strength to become pregnant, and actually gave birth to a child, although she was past the time of life for it, because she thought that He who made her the promise was to be trusted.
1 Corinthians 1:9
God is entirely trustworthy, and it is He through whom you have been called into this fellowship with His Son, Jesus Christ our Lord.
1 Corinthians 10:13
No temptation has taken hold of you but what is common to human nature. And God is to be trusted not to let you be tempted beyond your strength, but when temptation comes, to make a way out of it, so that you can bear up under it.
1 Thessalonians 5:24
He who calls you is trustworthy and He will do this.
2 Thessalonians 3:3
But the Lord is to be trusted, and He will give you strength and guard you from the evil one.
Titus 1:2
in the hope of eternal life which God, who never lies, promised ages ago

General references

Mark 15:38
And the curtain of the sanctuary was torn in two, from top to bottom.