PSALM FOR SUNDAY: "Let God Be Magnified."

Psalm 70:4-5

Let all those that seek thee rejoice and be glad in thee: and let such as love thy salvation say continually, Let God be magnified.
But I am poor and needy: make haste unto me, O God: thou art my help and my deliverer; O LORD, make no tarrying.

Matthew Henry:
David prays that God would fill the hearts of his friends with joy (Psalms 70:4), that all those who seek God and love his salvation, who desire it, delight in it, and depend upon it, may have continual matter for joy and praise and hearts for both and then he doubts not but that he should put in for a share of the blessing he prays for, and so may we if we answer the character. 
Let us make the service of God our great business and the favour of God our great delight and pleasure, for that is seeking him and loving his salvation. Let the pursuit of a happiness in God be our great care and the enjoyment of it our great satisfaction. 
A heart to love the salvation of the Lord, and to prefer it before any secular advantages whatsoever, so as cheerfully to quit all rather than hazard our salvation, is a good evidence of our interest in it and title to it. 
Let us then be assured that, if it be not our own fault, the joy of the Lord shall fill our minds and the high praises of the Lord shall fill our mouths. 
Those that love God's salvation shall say with pleasure, with constant pleasure (for praising God, if we make it our continual work, will be our continual feast) Let God be magnified, as he will be, to eternity, in the salvation of his people. 
All who wish well to the comfort of the saints, and to the glory of God, cannot but say a hearty amen to this prayer, that those who love God's salvation may say continually, 
Let God be magnified.