The eye witness accounts of Peter are unreasonable, though he would have no reason to lie. But the apostle doesn't say "Take my word for it." but rather claims that the Old Testament prophets have been pointing to the very person and moment he is talking about; that Jesus has come and His Word is to be trusted completely.

Peter understands his calling to love believers and is encouraging them to remember the truths of the gospel even after he is gone. The legacy of a Christian is a life of love towards one another, one that points to Christ.

Faith is expressed in faithfulness. For Peter to encourage believers he points them to what faith becomes, not that we would be blind and ineffective in this life, but that our faith would lead to virtue, knowledge of God, steadfastness, brotherly affection, and most importantly - love.

Identity of a Christian cannot be separated from the knowledge of God. The life of godliness as a gift involves knowing the Lord who has revealed Himself to us, as well as revealing ourselves to Him. Through His covenant promises He has demonstrated His love and made us partakers of the divine nature; and Christians are called to such an excellent and abundant life.

Peter begins this letter both with an identity and a goal. He has been saved into servitude of the Lord and at the same time is focused on multiplying grace and peace to all believers who stand equally at the foot of the cross. 

Walking in grace, understanding the call to obedience, and understanding our failure to do it perfectly...it doesn't crush us...but it compels us, and it points us back to our Savior.

Christianity is not an individual faith. The Lord saves His people to a family that is the Church. Therefore unity in the body of Christ is utmost, that the light of the gospel would shine through us as we are together and loving one another. 

God is all powerful, fully of glory and unmatched in holiness. Believers are to rest in the One who is greater than all and, with full and gladdened hearts, to recognize and acknowledge God is who He says He is; the King.

Emotions don't change the gospel. For David, confidence in His God is rooted in what is true and not in his feelings or circumstance. Because of His great love towards us, we have a Good Shepherd who came to dwell with us and never forsake us.

Remembering the covenant promises of God we look back at what He's done with unabridged trust, as well as into the future of glory. Christians have many reasons to rejoice because Christ has the victory and enables us to live in love as the assembly of the Church.