'Indeed' in the Bible

I indeed baptize you in water unto repentance, but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you in the Holy Spirit and in fire:

Then saith he unto his disciples, The harvest indeed is plenteous, but the laborers are few.

which indeed is less than all seeds; but when it is grown, it is greater than the herbs, and becometh a tree, so that the birds of the heaven come and lodge in the branches thereof.

And he answered and said, Elijah indeed cometh, and shall restore all things:

He saith unto them, My cup indeed ye shall drink: but to sit on my right hand, and on my left hand, is not mine to give; but it is for them for whom it hath been prepared of my Father.

Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak.