Matthew 5:34

ἐγὼ δὲ λέγω ὑμῖν μὴ ὀμόσαι ὅλως μήτε ἐν τῷ οὐρανῷ ὅτι θρόνος ἐστὶν τοῦ Θεοῦ

egō de legō hymin mē omosai holōs mēte en tō ouranō hoti thronos estin tou Theou

I however I say to you not to swear at all: neither in - heaven - [the] throne is of the of God