As I read this verse
Psalm 100:5 For the Lord is good; his mercy is everlasting; And his truth endureth to all generations.
it made me think of what the Bible says about the Lord. So here are a few things for you to consider:
The Lord is righteous Exodus 9:27
The Lord is long-suffering and of great mercy Numbers 14:18
The Lord is a God of knowledge I Samuel 2:3
The Lord is good Psalm 34:8
The LORD is merciful and gracious, slow to anger, and plenteous in mercy Psalm 103:8
The LORD is gracious and full of compassion Psalm 111:4
The LORD is good to all: and his tender mercies are over all his works. Psalm 145:9
The LORD is righteous in all his ways, and holy in all his works. Psalm 145:17.
The LORD is the true God, he is the living God, and an everlasting king Jeremiah 10:10.
The LORD is good; for his mercy endureth for ever Jeremiah 33:11
The LORD is slow to anger, and great in power Nahum 1:3
The Lord is faithful, who shall stablish you, and keep you from evil II Thessalonians 3:3
The Lord is very pitiful, and of tender mercy James 5:11