Compara traducciones versículo por versículo
Mas, pela graça de Deus, eu sou o que sou, e a graça que ele me concedeu não ficou sem resultados, pois tenho trabalhado mais arduamente do que todos eles, embora não fosse eu que efetivamente estivesse fazendo a obra, e sim a graça de Deus que está comigo.
Empero por la gracia de Dios soy lo que soy: y su gracia no ha sido en vano para conmigo; antes he trabajado más que todos ellos: pero no yo, sino la gracia de Dios que fué conmigo.
But by the grace of God I am what I am: and his grace which was bestowed upon me was not in vain; but I laboured more abundantly than they all: yet not I, but the grace of God which was with me.
But by the grace of God I am what I am. His grace which was given to me was not futile, but I worked more than all of them; yet not I, but the grace of God which was with me.