In The Light Of Their Great Privilege And Blessing They Should Set Themselves To Live Accordingly (1 Peter 1:13-16).
In the light of the wonder of the message that has come to them, and of the sanctifying work of the Spirit, His people are to tighten up the discipline of their minds and wills, fixing them on the goal that lies ahead. As a result they will receive the full benefits of God's gracious and undeserved favour, ‘the riches of His grace' (Ephesians 2:7; compare 1 Peter 1:7; 1 Peter 2:4), which are to be brought to them when Jesus Christ is openly manifested at His second coming.
Thus, as ‘children of obedience' (1 Peter 1:14), that is, as those who follow in the way of the obedience of Christ, they are to fashion themselves in accordance with that obedience to which they have been set apart in the obedience of Christ (1 Peter 1:2; Romans 5:19; Hebrews 10:5-14). And this is to be in deliberate contrast to the way in which they had previously fashioned themselves in accordance with their worldly lusts and desires (1 Peter 1:14) when they had been caught up in the ways of the world. In other words they are to turn their backs on the sinful ways of the world and are to set their hearts on being holy like God is holy (1 Peter 1:15-16), by being obedient to His truth. Here is ‘sanctification in the Spirit unto the obedience of Jesus Christ' being fully worked out.
If we see the first section from 1 Peter 1:3-9 as calling to ‘hope, faith and love', we may see this second section as calling to ‘soberness, obedience and holiness'; that is, to sensible living, obedient living, and clean and holy living. That is what is to result from their hope, faith and love.