God is faithful. We believe that. Or at least we say we believe that. But, most of us still struggle to rest in God’s faithfulness each day. Near the end of both of his letters to the Thessalonians, Paul reminded those readers of God’s faithfulness. We do well to remember those reminders, as well as others in Scripture:
He is faithful to complete the calling of the believer’s salvation.
Faithful is He who calls you, and He also will bring it to pass.(1 Thess. 5:24)
God is faithful, through whom you were called into fellowship with His Son, Jesus Christ our Lord. (1 Cor. 1:9)
He is faithful to protect us from Satan.
But the Lord is faithful, and He will strengthen and protect you from the evil one. (2 Thess. 3:3)
God is faithful to Himself.
If we are faithless, He remains faithful, for He cannot deny Himself. (2 Tim. 2:13)
God is faithful to provide us strength, endurance, and a path of escape from trials and temptation.
No temptation has overtaken you but such as is common to man; and God is faithful, who will not allow you to be tempted beyond what you are able, but with the temptation will provide the way of escape also, so that you will be able to endure it. (1 Cor. 10:13)
God is faithful to keep His covenant promises with Israel.
Know therefore that the LORD your God, He is God, the faithful God, who keeps His covenant and His lovingkindness to a thousandth generation with those who love Him and keep His commandments (Dt. 7:9)
The unbelief of unbelievers does not nullify the faithfulness of God.
What then? If some did not believe, their unbelief will not nullify the faithfulness of God, will it? (Rom. 3:3)
God is faithful in all that He does and is.
“The Rock! His work is perfect,
For all His ways are just;
A God of faithfulness and without injustice,
Righteous and upright is He. (Dt. 32:4)