By Pastor Dr. Ronnie W. Wolfe
God is our surety. This word indicates a pledge, or a guarantee, or a covenant. It also indicates a defense, which God is for his people. The word in its fullest meaning indicates also fellowship.
God is our surety in making Jesus, his only begotten Son, a surety (a defense) for us on the cross of a better covenant than that which is under the Mosaic Law.
The New Covenant is one that is not dependent in any way upon man himself but is initiated, executed, and fulfilled by God himself through his own divine and eternal plan.
God, I suppose, could be a surety of that which is bad, meting out judgment upon those who disobey and reject him, but here the psalmist cries out for God's surety for that which is good, and we know that God is good.
Notice Psalms 100:5 For the LORD is good; his mercy is everlasting; and his truth endureth to all generations. But God has a goodness that is superior to any good that is in man. Notice Mark 10:18 And Jesus said unto him, Why callest thou me good? there is none good but one, that is, God. Of course, this does not mean that Jesus is not good, but it means that, since Jesus is good, he is God.
The only way the psalmist can understand that God would be a surety for good is that God would hinder the proud from oppressing him. This is not a cry that God would suppress all of the oppression of the proud but that God would measure their oppression as nothing in David's sight, manifesting that God is much greater than all of our oppression, so that he could come as close as possible to that which is said of Jesus in Isaiah 53:7 He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth.
Oh, that all of us as God's children could come to this in our lives! Oh, that we might turn our problems over to God in Christ and render our oppressions from the wicked as vain and ineffective in our service to him with whom we have to do (Heb. 4:13