John 3:33
The person who has accepted his testimony has acknowledged that God is truthful.
John 6:27
Do not work for food that perishes but for food that lasts for eternal life, which the Son of Man will give you, because God the Father has set his seal on him."
Romans 3:3-4
What if some of the Jews were unfaithful? Their unfaithfulness cannot cancel God's faithfulness, can it?
Romans 4:18-21
Hoping in spite of hopeless circumstances, he believed that he would become "the father of many nations," just as he had been told: "This is how many descendants you will have."
2 Corinthians 1:18
As certainly as God is faithful, we haven't talked to you with mixed messages like that.
2 Corinthians 1:22
who has placed his seal on us and has given us the Spirit in our hearts as a down payment.
Ephesians 1:13
You, too, have heard the word of truth, the gospel of your salvation. When you believed in the Messiah, you were sealed with the promised Holy Spirit,
Titus 1:1-2
From: Paul, a servant of God, and also an apostle of Jesus the Messiah, to bring the faith to those chosen by God, along with full knowledge of the truth that leads to godliness,
Hebrews 6:17
In the same way, when God wanted to make the unchangeable character of his purpose perfectly clear to the heirs of his promise, he guaranteed it with an oath,
1 John 5:9-10
If we accept human testimony, God's testimony is greater, because it is the testimony of God and because he has testified about his Son.
Revelation 7:3-8
"Don't harm the land, the sea, or the trees until we have marked the servants of our God with a seal on their foreheads."