God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing.
From Psalm 23:5-6: “You prepare a table before me in the presence of my enemies; you anoint my head with oil; my cup runs over. Surely goodness and mercy shall follow me all the days of my life; and I will dwell in the house of the Lord forever.”
The process of living seems to consist in coming to realise truths so ancient and simple that, if stated, they sound like barren platitudes. They cannot sound otherwise to those who have not had the relevant experience.
From Proverbs 13:20: “Whoever walks with the wise becomes wise, but the companion of fools suffers harm.”