Charles H. Spurgeon on Psalms 108:1

With my glory. The parallel passage in the Prayer book version is, "with the best member I have." The tongue, being considered the best member, is here described as the glory of man —as that which tends to elevate him in the scale of creation; and therefore the pious man resolves to employ his speech in giving utterance to the goodness of God. God is glorified by the praise of his redeemed, and the instrument whereby it is effected is man's glory. —The Quiver.

Verses 1-2. As a man first tunes his instrument, and then playeth on it so should the holy servant of God first labour to bring his spirit, heart, and affections into a solid and settled frame for worship, and then go to work; My heart is fixed, or prepared firmly, I will sing and give praise. As the glory of man above the brute creatures, is that from a reasonable mind he can express what is his will by his tongue: so the glory of saints above other men, is to have a tongue directed by the heart, for expressing of God's praise: "I will sing and give praise, even with my glory." Under typical terms we are taught to make use of all sanctified means for stirring of us up unto God's service: for this the psalmist intends, when he saith, Awake psaltery and harp. We ourselves must first be stirred up to make right use of the means, before the means can be fit to stir us up: therefore saith he, I myself will awake right early. —David Dickson.

Verses 1-5. After David has professed a purpose of praising God (Ps 108:1-3) he tells you, next, the proportion that is between the attributes which he praiseth in God, and his praise of him. The greatness of the attributes mercy and truth we have in Ps 108:4, Thy truth reaches unto the clouds; and there is an answerable greatness in his praises of God for them, Ps 108:5: Be thou exalted, O God, above the heavens: and thy glory above all the earth. He wishes and endeavours to exalt him as high in his praises as he is in himself; to exalt him above the earth, above the heaven, and the clouds. —Henry Jeanes.