This is a song about climbing out of poverty and refusing to slide back down. It opens with a promise: "No vuelvo pa' atrás, pa' la pobreza" (I'm not going back to poverty). Notice the "pa'", a casual, spoken shortening of "para" you will hear all the time in Mexican music. He knows plenty of people would love to see him fail, and "El gusto no les voy a dar" (I won't give them the satisfaction) is his answer.
He is honest about money too. "Yo sé que el dinero no lo es todo" (I know money isn't everything), "Pero sí lo ocupaba" (but I did need it). Here ocupar means "to need", a very Mexican use of the verb that a textbook will not teach you. Another regional gem is chamaco (kid), in "Desde muy chamaco me propuse" (ever since I was a little kid I set myself a goal), and carnal, Mexican slang for a brother or a close friend: "Traigo una fuerza conmigo, es mi carnal" (I've got a strength with me, it's my brother).
The second verse gets personal. Seeing his parents "batallando" (struggling) pushed him to act, he left school, and he started to earn. The chorus keeps coming back to faith and teamwork, ending on the title line "Dios por delante, porque él nos va a guiar" (God first, because he will guide us). It is a feel-good hustle anthem, and the line about now smiling while watching his family enjoy life is the sweetest payoff in it.