Verses with the word declaring in the New Testament (3 verses):

Acts 15:3
And being brought on their way by the church, they passed through Phenice and Samaria, declaring the conversion of the Gentiles: and they caused great joy unto all the brethren.

Acts 15:12
Then all the multitude kept silence, and gave audience to Barnabas and Paul, declaring what miracles and wonders God had wrought among the Gentiles by them.

1 Corinthians 2:1
And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.