_Into which also the angels desired to look._ So great things have the Apostles declared to us, through the Holy Spirit, which descended upon them from heaven, as even the angels would gladly look into. When this Spirit opens our eyes and makes us see what the Gospel is, we shall have an appetite for it and a joy in it, although we cannot behold it with bodily eyes, but must believe that we are partakers and fellow-heirs of the righteousness, truth, salvation and all the blessings which God has to bestow. For since He has given us His only Son, that highest good, He will also, through Him, give us all good things, riches and treasures, whereof the angels in heaven have all their joy, and of which they are most desirous. All this is offered to us through the Gospel, and if we believe we shall also have a like desire for them. But our desire for them cannot be as perfect as that of the angels, so long as we live on earth; but it is a good beginning in us, if we experience, through faith, something of it. But in heaven it is so great that no human heart can conceive it; but if we reach that place we shall ourselves feel it. Thus you see how St. Peter teaches us to arm and equip ourselves with Scripture. For hitherto he has described what it is to preach the Gospel, and shown that as it heretofore has been preached by the prophets, so it should still be, and should be preached in like manner. Now he proceeds farther, and admonishes us in this chapter that we should cleave to the same preaching of the Gospel by faith, and follow after it by love, and therefore says,-- V. 13-16. _Gird up therefore the loins of your mind; be sober, and fix your hope firmly on the grace which is offered you through the revelation of Jesus Christ, as obedient children, not conformable to the previous lusts of your ignorance; but as He who has called you is Holy, be ye also holy in all your conduct, as it is written, Be ye holy for I am Holy._ This is an admonition to faith, and the sense is this: while such things are preached to you and bestowed upon you through the Gospel as the angels would rejoice and be desirous to behold, rely on them, and fix your confidence thereon with all firmness, so that it shall be a real faith, and not a painted or fictitious fancy or dream.