Matthew Henry on Psalms 105:1-7

Our devotion is here stirred up, that we may stir up ourselves to praise God. Seek his strength; that is, his grace; the strength of his Spirit to work in us that which is good, which we cannot do but by strength derived from him, for which he will be sought. Seek to have his favour to eternity, therefore continue seeking it while living in this world; for he will not only be found, but he will reward those that diligently seek him.