The word picture of the original language translated “minds ready for action,” portrays people fixing their minds like someone who might use a belt or rope to bind up the long robes in preparation for running or for strenuous work. The resulting self-discipline did not magnify self-effort, but reflected each person’s responsibility for participation in Christ’s work in the world.
This emphasis could lead some to focus on their effort instead of God’s grace.
1 Peter 1:13- 25 Therefore, with your minds ready for action, be serious and set your hope completely on the grace to be brought to you at the revelation of Jesus Christ. 14 As obedient children, do not be conformed to the desires of your former ignorance. 15 But as the One who called you is holy, you also are to be holy in all your conduct; 16 for it is written, Be holy, because I am holy.
The growing disciple’s living hope in the face of persecution is found in the grace they had received in Jesus and that would be brought to them more fully at His revelation in the second coming. Their hope and trust can’t be in their religious traditions or works.
Rather, they must place their hope completely on God’s grace.
Yet, they should not carelessly presume on Christ’s grace and slack into lifestyles that did not reflect His holy life. God’s grace does not mean we can live however we want, but that we are free to live in holiness.