Charles H. Spurgeon on Psalms 118:28

Thou art my God, and I will praise thee, my mighty God who hath done this mighty and marvellous thing. Thou shalt be mine, and all the praise my soul is capable of shall be poured forth at thy feet. Thou art my God, I will exalt thee. Thou hast exalted me, and as far as my praises can do it, I will exalt thy name. Jesus is magnified, and he magnifies the Father according to his prayer, "Father, the hour is come; glorify thy Son, that thy Son also may glorify thee." God hath given us grace and promised us glory, and we are constrained to ascribe all grace to him, and all the glory of it also. The repetition indicates a double determination, and sets forth the firmness of the resolution, the heartiness of the affection, the intensity of the gratitude. Our Lord Jesus himself saith, "I will praise thee"; and well may each one of us, humbly and with confidence in divine grace, add, on his own account, the same declaration, "I will praise thee." However others may blaspheme thee, I will exalt thee; however dull and cold I may sometimes feel myself, yet will I rouse up my nature, and determine that as long as I have any being that being shall be spent to thy praise. For ever thou art my God, and for ever I will give thee thanks.