The Doctrines of Grace need to be included in any explaining of the Gospel of Gods Grace. Acts 20:24
24 But none of these things move me, neither count I my life dear unto myself, so that I might finish my course with joy, and the ministry, which I have received of the Lord Jesus, to testify the gospel of the grace of God.
Can that be done without emphasizing the election of grace in the purpose of Gods Salvation ? Rom 11:5-6
5 Even so then at this present time also there is a remnant according to the election of grace.
6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then it is no more grace: otherwise work is no more work.
As you can see Paul uses "election of grace" and by grace interchangeably, and surely when testifying of the Gospel there is a mention that salvation is by grace.