'Diligently' in the Bible

And Laban saith unto him, 'If, I pray thee, I have found grace in thine eyes -- I have observed diligently that Jehovah doth bless me for thy sake.'

and they say, 'The man asked diligently concerning us, and concerning our kindred, saying, Is your father yet alive? have ye a brother? and we declare to him according to the tenor of these things; do we certainly know that he will say, Bring down your brother?'

Is not this that with which my lord drinketh? and he observeth diligently with it; ye have done evil in that which ye have done.'

and Joseph saith to them, 'What is this deed that ye have done? have ye not known that a man like me doth diligently observe?'