"And he wrote in the king Ahasuerus' name, and sealed it with the king's ring, and sent letters by posts on horseback, and riders on mules, camels, and young dromedaries:", Esther 8:10
"So she wrote letters in Ahab's name, and sealed them with his seal, and sent the letters unto the elders and to the nobles that were in his city, dwelling with Naboth.", 1Kings 21:9
A seal signifies the authority of the one who owns and applies the seal. (1Kings 21:8; Esther 8:8). God the Father sealed Christ. There is no greater signification of Christ’s authority. The Father’s seal signifies the authority of Christ’s words and works. The Father’s seal signifies that the words of Christ and the works of Christ are the words and works of the Father. The Father sent Christ. He anointed Him with His Spirit at His baptism. The Father spoke of Christ from heaven, “This is my beloved Son in whom I am well pleased.” By Him, Christ went about healing and raising the dead. All of the prophets before Christ, including John the Baptist, and all that followed after, especially the apostles, were sent of God and spoke of Christ. God raised Him from the dead. The Spirit of God is the seal. These things evidence that God the Father sealed the Son of Man, the Lord Jesus Christ, His only begotten Son, with His own Spirit so that He spoke and did all that God required of Him by the Spirit of His Father.
The Lord Jesus Christ must be heard because of the seal that He bears – it is the seal of Almighty God, the Father’s seal, and is the highest testimony to the authority of Christ as the Son of Man. Jesus Christ is the express image of the Father (Hebrews 1:3). Jesus told His disciples, “If you have seen me, you have seen the Father.” And again, “I and my Father are one.” Hence, if you have seen Christ, you have seen the Father. Likewise, if you have not seen Christ, you have not seen the Father; you do not know God. If you honor Christ, you honor the Father that sent Him – because He bears His seal. If you believe, worship, and obey the Lord Jesus Christ, you believe, worship, and obey God the Father. On the other hand, if you do not believe, do not worship, and do not obey the Lord Jesus, then you do not believe, worship, or obey the Father. If you do not love Christ, you do not love God.
The Son of God bears the signet ring of Heaven’s throne (the book of Esther is an historical allegory of this fact). Therefore, we should hear Him. With Him, God is well pleased. The seal signifies that He has the Father’s favor and approval. He commands the worship of heaven’s host. “What and if you shall see the Son of Man ascend up where He was before?!”, John 6:62
-- Pastor Rick Warta