It is ingrained in all living creatures, first of all, to preserve their own safety, to guard against what is harmful, to strive for what is advantageous.
Ambrose... the Apostle Peter declared that the Church was built by the Holy Spirit. For you read that he said: 'God, Who knows the hearts of men, bore witness, giving them the Holy Spirit, even as was given to us; and He made no distinction between us and them, purifying their hearts by faith' (Acts 15:8-9). In which is to be considered, that as Christ is the Cornerstone, Who joined together both peoples into one, so, too, the Holy Spirit made no distinction between the hearts of each people, but united them.
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.
AmbroseAs the print of the seal on the wax is the express image of the seal itself, so Christ is the express image - the perfect representation of God.
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!
AmbroseThe wise man does nothing but what can be done openly and without falseness, nor does he do anything whereby he may involve himself in any wrong-doing, even where he may escape notice. For he is guilty in his own eyes before being so in the eyes of others; and the publicity of his crime does not bring him more shame than his own consciousness of it.
Ambrose