"fastened with God's own hand"
Our hope is not hung upon such an untwisted thread as, "I imagine so," or "It is likely;" but the cable, the strong towe of our fastened anchor, is the oath and promise of Him who is eternal verity. Our salvation is fastened with God's own hand, and with Christ's own strength, to the strong stoup of God's unchangeable nature, "I am the Lord, I change not; therefore ye sons of Jacob are not consumed" (Mai. iii. 6). We may play, and dance, and leap upon our worthy and immovcable Rock. The ground is sure and good, and will bide hell's brangling, and devils' brangling, and the world's assaults.
—Samuel Rutherford
Ye may yourself ebb and flow, rise and fall, wax and wane ; but your Lord is this day as He was yesterday. And it is your comfort that your salvation is not rolled upon wheels of your own making, neither have ye to do with a Christ of your own shaping. God hath singled out a Mediator (Ps. Ixxxix. 19), strong and mighty : if ye and your burdens were as heavy as ten hills or hells, He is able to bear you, and save you to the uttermost. Your often seeking to Him cannot make you a burden to Him.
—Samuel Rutherford