Verses with the word longsuffering in the Apocrypha (4 verses):

Wisdom of Solomon 15:1
But thou, O God, art gracious and true, longsuffering, and in mercy ordering all things,

Sirach 2:11
For the Lord is full of compassion and mercy, longsuffering, and very pitiful, and forgiveth sins, and saveth in time of affliction.

Sirach 5:4
Say not, I have sinned, and what harm hath happened unto me? for the Lord is longsuffering, he will in no wise let thee go.

Prayer of Manassheh 1:1
O Lord, Almighty God of our fathers, Abraham, Isaac, and Jacob, and of their righteous seed;