John 6:27 "Do not work for the food which perishes, but for the food which endures to eternal life, which the Son of Man will give to you, for on Him the Father, God, has set His seal."

Romans 4:11 and he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised, that righteousness might be credited to them,

Romans 15:28 Therefore, when I have finished this, and have put my seal on this fruit of theirs, I will go on by way of you to Spain.

1 Corinthians 9:2 If to others I am not an apostle, at least I am to you; for you are the seal of my apostleship in the Lord.

2 Corinthians 1:22 who also sealed us and gave us the Spirit in our hearts as a pledge.

Ephesians 1:13 In Him, you also, after listening to the message of truth, the gospel of your salvation-- having also believed, you were sealed in Him with the Holy Spirit of promise,

Ephesians 4:30 Do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.

2 Timothy 2:19 Nevertheless, the firm foundation of God stands, having this seal, "The Lord knows those who are His," and, "Everyone who names the name of the Lord is to abstain from wickedness."

Revelation 7:3 saying, "Do not harm the earth or the sea or the trees until we have sealed the bond-servants of our God on their foreheads." (NASB ©1995)