Hebrews 6:3

“And this will we do, if God permit.] That is, leave the rites and ceremonies of the law, which were the rudiments, or first principles of the Gospel, and go on to a more perfect knowledge of Gospel truths; and, not lay again as the foundation of the ministry, or insist upon them as if they were the main things, even the above articles of the Jewish creed, especially in the, way and manner in which they had been taught and learnt: the sense is, that the apostle and his brethren, in the ministry were determined to insist upon the more solid and substantial parts of the Gospel, and which tended to bring on their hearers to perfection; and that it became the believing Hebrews to seek after a…”

“will we do--So some of the oldest manuscripts read; but others, "Let us do." "This," that is, "Go on unto perfection." if God permit--For even in the case of good resolutions, we cannot carry them into effect, save through God "working in us both to will and to do of His good pleasure" (Phi 2:13). The "for" in Heb 6:4 refers to this: I say, if God permit, for there are cases where God does not permit, for example, "it is impossible," &c. Without God's blessing, the cultivation of the ground does not succeed (Heb 6:7).”

“And this will we do - We will make these advances toward a higher state of knowledge and piety. Paul had confidence that they would do it (see Hebrews 6:9-10), and though they had lingered long around the elements of Christian knowledge, he believed that they would yet go on to make higher attainments. If God permit - This is not to be interpreted as if God was “unwilling” that they should make such advances, or as if it were “doubtful” whether he would allow it if they made an honest effort, and their lives were spared; but it is a phrase used to denote their “dependence” on him. It is equivalent to saying, “if he would spare their lives, their health, and their reason; if he would continue…”

“And this we will do - We will go on to perfection; and so much the more diligently, because, Hebrews 6:4”

“6:3 The author is implicitly exhorting his readers to maturity, not only in their understanding but in everything (cp. 4:11; 5:14; 10:23-39; 12:1-13).”

“if: Act 18:21; Rom 15:32; Co1 4:19, Co1 16:7; Jam 4:15 Hebrews 6:4”