1 Wakorintho 15 : 58 1st Corinthians chapter 15 verse 58

Basi, ndugu zangu wapendwa, mwimarike, msitikisike, mkazidi sana kutenda kazi ya Bwana sikuzote, kwa kuwa mwajua ya kwamba taabu yenu siyo bure katika Bwana.
soma Mlango wa 15

Therefore, my beloved brothers, be steadfast, immovable, always abounding in the Lord's work, because you know that your labor is not in vain in the Lord.