Verses 7-8 (Paraphrase)
HErein have I found that Rest, peace, and satisfaction unto my own soul, that I cannot but invite and encourage others, in the like condition to take the same course with me. Let then all the Israel of God, all that fear him, learn this of me, and from my experience. Be not hasty in your distresses; despond not, despair not, turn not aside unto other remedies; but hope in the Lord; for I can now in an especial manner, give testimony unto this, that there is mercy with him suited unto your relief. Yea, whatever your distress be, the redemption that is with him, is so bounteous, plenteous and unsearchable, that the undoubted issue of your performance of this duty will be; that you shall be delivered from the guilt of all your sins; and the perplexities of all your troubles.
In this I have found such rest, peace, and satisfaction for my own soul that I cannot help but invite and encourage others in the same condition to take the same path. Let all the Israel of God — all who fear Him — learn this from me and from my experience. Do not be hasty in your distress; do not despair, do not give up hope, do not turn to other remedies. Instead, hope in the Lord — for I can now give special testimony that there is mercy with Him suited to your need. Whatever your distress may be, the redemption that is with Him is so abundant, plentiful, and beyond searching out, that if you persist in this duty the undoubted outcome will be that you are delivered from the guilt of all your sins and the anguish of all your troubles.