Psalms 85:8

I will hear Diligently observe; what God the Lord will speak Either by his prophets and other messengers, or by his providence, for that also hath a voice: I will hear what answer God will give to these my prayers. And the psalmist, by declaring what he would do, teaches all the Israelites what they ought to do; namely, attentively to hearken to the voice of God, in whatever way he should be pleased to speak to them, and to receive his gracious declarations and promises in faith and expectation, and his holy precepts and dispensations in obedience and submission: and especially that they should wait to know what answer God would return to their prayers. For he will speak peace unto his people I am assured, from God's gracious nature, and declared will and promises, that he will give an answer of peace to his people; and to his saints Which clause seems to be added by way of explication and restriction, to show that this glorious privilege did not belong to all that were called God's people, but only to those that were truly and really such, even to his saints or holy ones, or, as חסידיו, chasidaiv, rather means, his kind, beneficent, and merciful ones, who to piety and holiness toward God, join justice and benevolence toward man, and while they truly love and serve God, love and serve their brother also. To these God will speak peace, for blessed are the merciful, they shall obtain mercy. But let them not turn again to folly That is, to sin, which in Scripture is commonly called folly. This is added as a necessary caution; for it is on these terms, and no other, that peace is to be expected. To those, and those only, peace is spoken, who turn from sin; but if they return to it again, if they become wanton and secure, and relapse into their former wicked courses, they will provoke God to repent of his kindness to them, to inflict further and sorer judgments upon them here; and, if they still persist in disobedience and rebellion, to punish them more severely hereafter. Observe, reader, all sin is folly, but especially backsliding; it is egregious folly to turn to sin, after we had turned from it; to turn to it, after God had forgiven it, delivered us from the power of it, and spoken peace to our consciences. God is for peace, but when he speaks thereof, such are for war.