KJV:
That thou mightest know the certainty of those things, wherein thou hast been instructed.
NASB:
so that you may know the exact truth about the things you have been taught.
KJV:
This man was instructed in the way of the Lord; and being fervent in the spirit, he spake and taught diligently the things of the Lord, knowing only the baptism of John.
NASB:
This man had been instructed in the way of the Lord; and being fervent in spirit, he was speaking and teaching accurately the things concerning Jesus, being acquainted only with the baptism of John;
KJV:
And they are informed of thee, that thou teachest all the Jews which are among the Gentiles to forsake Moses, saying that they ought not to circumcise their children, neither to walk after the customs.
NASB:
and they have been told about you, that you are teaching all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children nor to walk according to the customs.
KJV:
Them take, and purify thyself with them, and be at charges with them, that they may shave their heads: and all may know that those things, whereof they were informed concerning thee, are nothing; but that thou thyself also walkest orderly, and keepest the law.
NASB:
take them and purify yourself along with them, and pay their expenses so that they may shave their heads; and all will know that there is nothing to the things which they have been told about you, but that you yourself also walk orderly, keeping the Law.
KJV:
And knowest his will, and approvest the things that are more excellent, being instructed out of the law;
NASB:
and know His will and approve the things that are essential, being instructed out of the Law,
KJV:
Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also, than ten thousand words in an unknown tongue.
NASB:
however, in the church I desire to speak five words with my mind so that I may instruct others also, rather than ten thousand words in a tongue.