John Gill Commentary Lamentations 3:25

"Jehovah is good unto them that wait for him, to the soul that seeketh him." — Lamentations 3:25 (ASV)

The Lord [is] good to them that wait for him
For the enjoyment of him as their portion in this world, and in that to come; for his presence here and hereafter; which they are sometimes now deprived of, but should wait patiently for it; since he has his set time to arise and favour them with it; to such is he "good" communicatively, and in a special way and manner. They that wait for him shall not be ashamed, or disappointed of what they expect; they shall renew their spiritual strength, and grow stronger and stronger; they shall inherit the earth, the new heavens and the new earth; enjoy many blessings now, and have good things laid up for them hereafter, eye has not seen, nor ear heard, (Isaiah 49:23) (40:31) (64:4) (Psalms 37:9) ; perhaps some regard may be had to the coming of Christ in the flesh, which the saints then expected, and were waiting for in faith and hope; to whom the Lord was good and gracious in due time, by performing the mercy promised them, (Isaiah 25:9) ;

to the soul [that] seeketh him ;
that seeks him aright; that seeks him by prayer and supplication; that seeks him in his house and ordinances, where he is to be found; that seeks him early, in the first place, and above all things else; that seeks him earnestly, diligently, with his whole spirit, heart, and soul; that seeks his face, his favour, grace, and glory, and all in Christ, through whom all are to be enjoyed. God is good to such souls; he is a rewarder of them in a way of grace; with himself, as their shield and exceeding great reward; with his Son, and all things freely with him; with his Spirit and graces, and with eternal glory and happiness; such find what they seek for, Christ, his grace, and eternal fire; the Lord never forsakes them, nor the work of his hand in them, and they shall live spiritually and eternally; see (Hebrews 11:6) (Proverbs 8:17) (Matthew 7:7) (Romans 2:7) (Psalms 9:10) (69:32) .