'Secret' in the Bible

having made known to us the secret of His will, according to His good pleasure, that He purposed in Himself,

that by revelation He made known to me the secret, according as I wrote before in few words --

in regard to which ye are able, reading it, to understand my knowledge in the secret of the Christ,

and to cause all to see what is the fellowship of the secret that hath been hid from the ages in God, who the all things did create by Jesus Christ,

for the things in secret done by them it is a shame even to speak of,

this secret is great, and I speak in regard to Christ and to the assembly;

and in behalf of me, that to me may be given a word in the opening of my mouth, in freedom, to make known the secret of the good news,