Does God give a witness for His goodness?

the living God, which made heaven, and earth, and the sea, and all things that are therein:

16 Who in times past suffered all nations to walk in their own ways.

17 Nevertheless he left not himself without witness, in that he did good, and gave us rain from heaven, and fruitful seasons, filling our hearts with food and gladness. – Acts 14

he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust. – Matthew 5:45