Psalms 103:7

He made known his ways unto Moses - This is another ground of praise - that God had “revealed his will;” that this had been done in an indubitable manner to Moses; and that these revelations had been recorded by him for the instruction and guidance of his people. The word “ways” here means his laws; his methods of administration; the principles on which he governs mankind, and the conditions on which he will save people. There is no higher ground of gratitude to God than the fact that he has given a revelation to mankind.

His acts unto the children of Israel - His methods of doing things have been made known to them; and his acts - his interpositions - have been in their favor.