Remember, then, that you received a spiritual seal, the spirit of wisdom and understanding, the spirit of knowledge and reverence, the spirit of holy fear. Keep safe what you received. God the Father sealed you, Christ the Lord strengthened you and sent the Spirit into your hearts as the pledge of what is to come.
AmbroseWe must follow the ways of the Lord, and take heed to our own ways, lest they lead us into sin. One can take heed if one is not hasty in speaking. The law says: 'Hear, O Israel, the Lord your God' (Dt. 6:4). It said not: 'Speak,' but 'Hear.' Eve fell because she said to the man what she had not heard from the Lord her God. The first word from God says to you: Hear!
AmbroseAs a servant desireth the approval of his master, and a son the approval of his father, so should we desire the approval of God and our own conscience.
Ambrose... the Apostle Paul says that we are sealed in the Spirit (cf. Eph. 1:13); since we have in the Son the image of the Father, and in the Spirit the seal of the Son. Let us, then, sealed by this Trinity, take more diligent heed, lest either levity of character or the deceit of any unfaithfulness unseal the pledge which we have received in our hearts.
Ambrose